Advanced Ceramic Fasteners

Category Archives: Advanced Ceramic Fasteners

What Is the Max Length of a Ceramic Fastener

Posted on June 12, 2023 by Kathleen

Q: Hi, I’m search to get a 1/4″-20 x 3ft long alumina ceramic rod. Is this something you can make? A: For Extreme Bolt & Fastener, 3″ long is the max length we can produce a ceramic bolt, rod or other fastener. As you may know ceramics are brittle, but breakage … Continue reading →

Understanding A and B Thread Classes & Thread Pitch Classes

Posted on February 23, 2023 by Kathleen

A&B Thread Pitch Q: What is the difference between an A and B thread pitch? A: An A Thread class or pitch signifies the outer threads, therefore an A applies to a bolts, screws, threaded rod and studs. Whereas a B thread class applies to the internal threading. B Thread … Continue reading →

Posted in Advanced Ceramic Fasteners, Engineered Polymer Fasteners, FAQs, Material, Specialty Metal Fasteners, Technical Questions | Tagged What does 1A thread pitch mean, What does 1B thread pitch mean, What does 2A Thread pitch mean, What does 2b thread pitch mean, What does 3A Thread pitch mean, What is 1A threat pitch, What is 1B threat pitch, What is 2A threat pitch, What is 2B threat pitch, What is 3A threat pitch, What is 3B threat pitch, What is a thread pitch class, What is the difference between a 1A and 1B Thread pitch, What is the difference between a 1A and 2A thread pitch, What is the difference between a 1B and 2B thread pitch, What is the difference between a 2A and 2B Thread pitch, What is the difference between a 2A and 3A thread pitch, What is the difference between a 2B and 3B thread pitch, What is the difference between a 3A and 3B Thread pitch, What is the difference between A and B thread pitch, What is thread pitch class 2, What is thread pitch class 4, What is thred pitch class 1, What is UNC-1A, What is UNC-1B, What is UNC-2A, What is UNC-2B, What is UNC-3A, What is UNC-3B, what is UNF-1A, What is UNF-1B, What is UNF-2A, What is UNF-2B, What is UNF-3A, What is UNF-3B | Leave a comment

Standard Angle for Inch Flat Head Screws

Posted on January 27, 2023 by Kathleen

Standard Angle for Inch Flat Head Screws Q: What is the standard angle for an inch flat head screw? A: Flat head screws made in inch dimensions typically have a standard angle of 82°. This holds true per ASME 18.3 for flat head socket cap screws which are the most common.However ASME B18.6.3 … Continue reading →

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Standard Metric Flat Head Screw Angle

Posted on January 27, 2023 by Kathleen

Q: What is the standard angle of a metric flat head screw? A: Metric flat head screws have a standard angle of 90 degrees. This is stated in the metric DIN standard DIN963 for flat head phillips and slotted flat head screws. Also, the standard angle for metric flat head socket … Continue reading →

Posted in Advanced Ceramic Fasteners, Engineered Polymer Fasteners, Material, Specialty Metal Fasteners | Tagged DIN7991 angle, DIN7991 flat head socket cap angle, DIN7991 flat head socket cap screw angle, DIN963 Angle, DIN963 Flat head Angle, DIN963 Flat head Screw Angle, DIN963 Screw Angle, metric flat head socket cap head angle, metric flat head socket cap screw angle, metric socket head cap screw standard angle, metric socket head cap screw standard head angle, standard angle DIN7991, standard angle DIN963, STandard angle for metric flat head bolt, Standard Angle for Metric Flat Head Screw, standard angle for metric flat head socket cap screws, Standard angle metric flat head, standard angle metric flat head screw, standard angle metric flat head socket cap screws, Standard Metric Flat Head Screw Angle | Leave a comment

UNC vs UNRC Threads

Posted on January 12, 2023 by Kathleen

Q: What is the difference between UNC and UNRC Threads? A: An “R” pitch can apply to UNRF (unified rounded fine thread) and UNRC (unified rounded coarse thread). The only difference between UNC threads and UNRC threads (or UNF and UNRF threads) is that the root of the thread – … Continue reading →

Posted in Advanced Ceramic Fasteners, Engineered Polymer Fasteners, FAQs, Material, Specialty Metal Fasteners, Technical Questions | Tagged Difference between UNC and UNRC, Difference between UNC and UNRC threads, Difference between UNC thread and UNRC thread, Difference between UNF and UNRF, Difference between UNF and UNRF threads, Difference between UNF thread and UNRFthread, UNC compared to UNRC, UNC thread compared to UNRC thread, UNC thread vs UNRC thread, UNC vs UNRC, UNF compared to UNRF, UNF thread compared to UNRF thread, UNF thread vs UNRF thread, UNF vs UNRF, what does unrc mean, what does unrf mean, what is unrc thread mean, what is unrf thread mean | Leave a comment

Determining if a Material is Magnetic

Posted on December 29, 2022 by Kathleen

Q: How do I know if a material is magnetic? A: Iron is the element that causes magnetism. Therefore, any material/alloy containing iron MAY be magnetic to some extent. However while all stainless steels contain iron, some stainless steels are magnetic, and others are not. The defining factor of magnetism … Continue reading →

Posted in Advanced Ceramic Fasteners, Application, Engineered Polymer Fasteners, FAQs, Material, Specialty Metal Fasteners, Technical Questions | Tagged Austenitic stainless steels are non-magnetic, How do I know if a material is magnetic, Is Inconel Magnetic, Is Monel Magnetic, is stainless steel magnetic, Is titanium Magnetic, Is tungsten magnetic, Martensitic stainless steels are magnetic, non-magnetic metal alloys, non-magnetic metals, which alloys are magnetic, which alloys are non-magnetic, Which materials are magnetic, which materials are non-magnetic, which metal alloys are magnetic, which metal alloys are non-magnetic, which metals are magnetic, which metals are non-magnetic | Leave a comment

What is a Jam Nut

Posted on December 22, 2022 by Kathleen

What is a Jam Nut Q: Can you tell me what the difference is between a standard hex nut and a jam nut? A: A jam nut has a shorter height than a standard finished hex nut. Typically, it is half as tall as a standard hex nut. A jam … Continue reading →

Certificates of Conformance (CoC) for Fasteners

Posted on November 10, 2022 by Kathleen

Q:What is included in a fastener certificate of conformance? A: A Certificate of Conformance for fasteners – often called a CoC – focus on the part dimensions, additional processing and compliance certificates. It confirms the dimensions of the part and states that these fasteners meet any of the customers requested industry standards such … Continue reading →

Posted in Advanced Ceramic Fasteners, Engineered Polymer Fasteners, FAQs, Material, Specialty Metal Fasteners, Technical Questions | Tagged Bolt Certificate of Conformance, Bolt Coc, Bolt Cof C, certificate of conformance, CoC, Cof C, Fastener Certificate of Conformance, Fastener CoC, Fastener Cof C, Screw Certificate of Conformance, Screw Coc, Screw Cof C | Leave a comment

European Standards for Material Test Reports and Certificates of Conformance

Posted on November 10, 2022 by Kathleen

Q: My customer is asking for bolts with EN 10204 3.1 and 3.2. I have no idea what that means can you help me out? QA: EN 10204 3.1 and 3.2, as well as 2.1 all are European standards for quality certificates. The number 3.1 identifies that they require a … Continue reading →

Posted in Advanced Ceramic Fasteners, Engineered Polymer Fasteners, FAQs, Material, Specialty Metal Fasteners, Technical Questions | Tagged certificate of conformance, CoC, EN 10204 2.1, EN 10204 3.1, EN 10204 3.2, European material test report, european MTR, material test reports, MTR | Leave a comment

Sulfuric Acid: Which Fastener Material is Best?

Posted on September 6, 2022 by Kathleen

Sulfuric Acid ( H2SO4 ) is one of the most widely used and important acids, being an essential component to many industries. Equally as important is selecting the right material to survive this environment. This newsletter will provide options. WHICH IS BEST? That depends on BOTH concentration and temperature – … Continue reading →

Number of Threads for Strength: Fine vs Coarse Threads

Posted on December 21, 2021 by Kathleen

Q: I’m designing a process that must be able to handle a high load at about 1000F. I’m planning to use A286, but I now need to know what bolt length size to use to make this machinery stable. I’d like to use as short small of a bolt as possible so how … Continue reading →

Posted in Advanced Ceramic Fasteners, Engineered Polymer Fasteners, FAQs, Material, Specialty Metal Fasteners, Technical Questions | Tagged fine bolt threads verses coarse bolt threads, fine bolt threads vs coarse bolt threads, fine screw threads verses coarse screw threads, fine screw threads vs coarse screw threads, fine threads verses coarse threads, fine threads vs coarse threads, fine verses coarse threads, fine vs coarse threads, How many threads per in on a bolt, How many threads per inch, How many threads per inch on a screw, number of threads for strength, Right number of threads on a bolt, right number of threads on a screw, What is the right number of threads per inch | Leave a comment

Understanding Different Flat Washers: General Purpose, SAE, USS & Oversize

Posted on October 28, 2021 by Kathleen

Q: What is the difference between a general purpose, SAE, USS and oversized washer? Are they all flat washers or different styles. And is one better than the other? A: General purchase, SAE, USS and oversize are all flat washers and all serve the same purpose of distributing the load … Continue reading →

Posted in Advanced Ceramic Fasteners, Application, Engineered Polymer Fasteners, FAQs, Material, Specialty Metal Fasteners, Technical Questions | Tagged general purpose compared to oversized flat washers, general purpose compared to oversized washers, General purpose flat washers, general purpose vs oversized flat washers, general purpose vs oversized washers, general purpose washers compared to oversized washers, general purpose washers vs oversized washers, Oversize flat washers, oversized flat washers, SAE compared to USS flat washers, SAE compared to USS washers, SAE flat washers, SAE vs USS flat washers, SAE vs USS washers, SAE washers compared to USS washers, SAE washers vs USS washers, USS flat washers | Leave a comment

Allen, Hex, and Socket Drivers

Posted on October 11, 2021 by Kathleen

Q: What is the difference between an allen, hex and socket driver? A: All these drivers are the same. They can be offered in a socket head cap screw (hence the term socket), pan head and flat head. An allen/hex/socket drive offers a more secure connection than say a flat … Continue reading →

Posted in Advanced Ceramic Fasteners, Application, Engineered Polymer Fasteners, FAQs, High Strength, Material, Specialty Metal Fasteners, Technical Questions | Tagged allen driver screw, allen head screw, button head socket cap, button head with allen driver, button head with hex driver, flat head socket cap, flat head with allen drive, flat head with hex driver, hex socket screw, pan head with allen driver, pan head with socket driver, socket head cap screw | Leave a comment

Inconel 600 Bolts Compared to Ceramics in High Temperatures

Posted on October 5, 2021 by Kathleen

Q: I have a high temperature application that runs at about 1900- 2000F. Would a ceramic bolt be a good idea. I need to have some strength and Alumina says it offers 75 ksi UTS? Will that work? A: Ceramics are not often a good idea when their are any … Continue reading →

Posted in Advanced Ceramic Fasteners, Application, FAQs, High Strength, High Temperature Resistance, Material, Specialty Metal Fasteners, Technical Questions | Tagged Inconel bolts compared to Ceramic Bolts, Inconel Bolts Compared to Ceramics in High Temperatures, Inconel bolts vs Ceramic Bolts, Inconel screws compared to Ceramic screws, Inconel Screws Compared to Ceramics in High Temperatures, Inconel screws vs Ceramic screws | Leave a comment

Flat Head Screws – What angles are standard?

Posted on July 19, 2021 by Kathleen

Q: I have a customer who is looking for some Inconel flat head screws and specifically called out 100°. Is this the standard? A: Flat head screws, also known as countersunk screws, are able to be manufactured with 6 different angles – 60°, 82°, 90°, 100°, 110° and 120°. The most … Continue reading →

Posted in Advanced Ceramic Fasteners, Engineered Polymer Fasteners, FAQs, Material, Specialty Metal Fasteners, Technical Questions | Tagged c276 flat head screws, duplex flat head screws, flat head screws, hastelloy flat head screws, inconel flat head screws, peek flat head screws, specialty material flat head screws | Leave a comment

Difference Between Hex Bolts & Hex Head Cap Screws

Posted on June 29, 2021 by Kathleen

Hex Cap Screws and Hex Bolts – Are they the same? While most think these parts are the same, they do have some slight differences. Hex head cap screws have a flat washer facing under the head that meet specific tolerances per ASME B18.2.1 whereas a Hex Bolt is flat … Continue reading →

Posted in Advanced Ceramic Fasteners, Engineered Polymer Fasteners, FAQs, Material, Specialty Metal Fasteners, Technical Questions | Tagged Hex bolt vs hex cap screw, hex cap screw vs hex bolt, hex head bolt vs hex cap screw, hex head cap screw vs hex bolt | Leave a comment

UNJF vs UNF Threads – What is the difference?

Posted on June 28, 2021 by Kathleen

Q: I have a customer requesting a UNJF thread for his Aerospace application. How are these different from a UNF thread? A: This is a great question as UNJ threaded bolts are not interchangeable with a standard UN, UNC, or UNF nut. An internal UNJ thread will assemble to a standard … Continue reading →

Posted in Advanced Ceramic Fasteners, Application, Engineered Polymer Fasteners, FAQs, Material, Specialty Metal Fasteners, Technical Questions | Tagged UNF bolt threads, UNF screw threads, UNF threads, UNF vs UNJF fastener threads, UNJF bolt threads, UNJF compared to UNF threads, UNJF screw threads, UNJF Threads, UNJF vs UNF fastener threads, UNJF vs UNF threads | Leave a comment

Studs: First to First Thread vs. Overall Length

Posted on June 23, 2021 by Kathleen

Q: My customer asked for a Hastelloy stud that is threaded first to first. Is this important? A: This is a very important detail. There are 2 options for threads on studs. 1) First to First and 2) Overall Length (or physical end to other physical end). “First to … Continue reading →

Posted in Advanced Ceramic Fasteners, Engineered Polymer Fasteners, FAQs, Material, Specialty Metal Fasteners, Technical Questions | Tagged End to end stud, First to first stud, Hastelloy Stud, Nickel Alloy Stud, Overall length stud, Specialty Material Stud | Leave a comment

Difference Between a DIN 6912 & DIN 912 Socket Head Cap Screw

Posted on June 18, 2021 by Kathleen

Q: I have a request for a titanium socket head cap screw. The customer asked to have this screw made to DIN specifications but I found two DIN specs for a socket head cap screw. What is the difference between DIN 6912 and 912? A: A titanium DIN 6912 socket … Continue reading →

Posted in Advanced Ceramic Fasteners, Application, Engineered Polymer Fasteners, FAQs, Material, Specialty Metal Fasteners, Technical Questions | Tagged DIN 6912 compared to DIN 912, DIN 912 compared to DIN 6912, DIN6912 compared to DIN912, DIN912 compared to DIN6912 | Leave a comment

Non-conductive Screw with Strength of Steel

Posted on November 23, 2020 by Kathleen

Q: We are looking for a non-conductive screw that gets close to the strength of 316 stainless steel, ideas? A: The best we could offer would be our glass fiber reinforced PEEK screws. It has nearly double the tensile strength as natural PEEK at about 22,800 psi. You could also … Continue reading →

Posted in Advanced Ceramic Fasteners, Application, Engineered Polymer Fasteners, FAQs, High Strength, Technical Questions | Tagged Glass Fiber Peek bolts electrical insulation, Glass Fiber Peek bolts for non-conductive application, Glass Fiber Peek fasteners electrical insulation, Glass Fiber Peek fasteners for non-conductive application, Glass Fiber Peek screws electrical insulation, Glass Fiber Peek screws for non-conductive application, PEEK bolts for high strength, PEEK fasteners for high strength, PEEK screws for high strength | Leave a comment

Do ceramic fasteners provide strength?

Posted on October 8, 2020 by Kathleen

Q: Do ceramic fasteners provide strength? A: The answer to your question is both yes and no. They provide decent tensile strength similar to some stainless steels(Aluminia bolts has a tensile strength of 30 ksi and Zirconia screws 75 ksi), however they don’t have any yield strength. Due to the … Continue reading →

Posted in Advanced Ceramic Fasteners, Application, FAQs, High Strength, Material, Technical Questions | Tagged strength of alumina bolts, strength of alumina fasteners, strength of alumina screws, strength of alunina ceramic bolts, strength of alunina ceramic fasteners, strength of alunina ceramic screws, strength of ceramic bolts, Strength of ceramic fasteners, strength of ceramic screws, strength of zirconia bolts, strength of zirconia ceramic bolts, strength of zirconia ceramic fasteners, strength of zirconia ceramic screws, strength of zirconia fasteners, strength of zirconia screws | Leave a comment

Zirconia Fasteners for Non-Reactive 2000C Application

Posted on June 11, 2020 by dean

Q: I am looking for recommendations for fasteners capable of operating under load at 2000C, in a mild vacuum environment. The material can be conductive or insulating just along as it does not react with carbon. A: For temperatures as high as 2000C, Zirconia ceramic fasteners would be your only … Continue reading →

Posted in Advanced Ceramic Fasteners, Application, Corrosion Resistance, FAQs, High Temperature Resistance, Technical Questions | Tagged zirconia bolts for high temperature, zirconia ceramic bolts for 2000C application, zirconia ceramic bolts for high temperature, zirconia ceramic fasteners for 2000C application, zirconia ceramic fasteners for high temperature, zirconia ceramic screws for 2000C application, zirconia ceramic screws for high temperature, zirconia fasteners for 2000C application, zirconia fasteners for high temperature, zirconia screws for 2000C application, zirconia screws for high temperature | Leave a comment

PEEK Screws for Low Dielectric Constant & Strength

Posted on April 24, 2020 by dean

Q: We are looking for a non-conductive screw with lower dielectric constant / dissipation factor to replace a steel screw (Tensile Strength 70kpsi) in one of our products. So were trying to get to similar strength / properties to the steel screw to meet our torque requirements. Will a ceramic … Continue reading →

Strength Ceramic Screws Compared to Steel

Posted on April 1, 2020 by dean

Q: How do ceramic alumina screws compare to steel screws as far as strength goes? The load would most likely be tension, but some compression too. A: If you compare 316 Stainless Steel to Zirconia ceramic screws, their tensile strengths are similar (around 75 ksi tensile) with Alumina ceramics being … Continue reading →

Posted in Advanced Ceramic Fasteners, Application, FAQs, High Strength, Technical Questions | Tagged alumina ceramic screw strength, alumina screws compared to stainless steel, Ceramics screws compared to stainless steel, strength of alumina ceramic screws compared to stainless steel, strength of zironia ceramic screws compared to stainless steel, zirconia ceramic screw strength, zirconia screws compared to stainless steel | Leave a comment

Non-Conductive Fasteners – Polymers or Ceramics?

Posted on April 3, 2019 by dean

Q: I need a bolt that can handle high temperatures and be an electric insulator? What can I use? A: That depends on what you mean by high temperature and what other issues you have like the strength requirements. If you are talking about temperatures under 500F, then you may … Continue reading →

Non-Electrically Conductive Fasteners – Polymers or Ceramics?

Posted on March 21, 2019 by dean

Q: I’m looking for a socket head cap screw that is 5/8″-11 x 5.5 inches in length. Need the material to be non-conductive and was thinking Ceramic Zirconia? Would that work? A: Ceramics like Zirconia screws are in fact an excellent insulator from electrical current. However zirconia ceramic fasteners are … Continue reading →

How to Choose High Temp Oxidation Resistant Fasteners

Posted on October 3, 2018 by dean

From thermal processing and furnace applications to the extreme demands of aerospace, several high temperature alloys are available each with unique traits and capabilities. This brief newsletter will outline the primary fastener materials that are commonly used for excellent high temperature and oxidation resistance. Best High Temperature Oxidation Resistant Fasteners … Continue reading →

Posted in Advanced Ceramic Fasteners, Application, Blog, High Strength, High Temperature Resistance, Material, Specialty Metal Fasteners | Tagged 310SS bolts for cyclic conditions, 310SS cyclic conditions, 310SS screws for cyclic conditions, A286 bolts for oxidation resistance, A286 fasteners for oxidation resistance, A286 screws for oxidation resistance, Alloy 330 bolts for high temperature oxidation, Alloy 330 bolts for high temperature oxidation resistance, Alloy 330 bolts for high temperatures, Alloy 330 screws for high temperatures, Bolts for cyclic conditions, bolts for high temperature oxidation resistance, bolts for oxidation and caburization resistance, bolts for oxidation resistance, Fasteners for cyclic conditions, fasteners for high temperature oxidation resistance, fasteners for oxidation resistance, Materials for cyclic conditions, Screws for cyclic conditions, screws for high temperature oxidation resistance, screws for oxidation and caburization resistance, screws for oxidation resistance | 1 Comment

Brittle Ceramic Screws vs Molybdenum in Vacuum Furnaces

Posted on July 6, 2018 by dean

Q: We are using ceramic screws in one of vacuum furnaces, they’re breaking due to thermal stresses. There is lots of thermal cycling. Are their any less brittle materials we can use? The environment is low pressure with a max temperature of 1050C. Gases used in the system include: argon, … Continue reading →

Posted in Advanced Ceramic Fasteners, Application, FAQs, High Temperature Resistance, Specialty Metal Fasteners, Technical Questions | Tagged Ceramics brittle in vacuum furnace, Ceramics vs Molybdenum in vacuum furnaces, High temperature bolts for vacuum furnace, High temperature fasteners for vacuum furnace, High temperature screws for vacuum furnace, Molybdenum bolts for vacuum furnace, Molybdenum fasteners for vacuum furnace, Molybdenum for vacuum furnace, Molybdenum screws for vacuum furnace | Leave a comment

PEEK vs Ceramic Fasteners for Strength & Electrical Resistance

Posted on February 28, 2018 by dean

Q: I am looking for some high tensile strength studs with good electricity resistance. I think zirconia of aluminia material will be suitable but I am open for suggestions. The studs would be about 5 inches long. A: Probably ceramics fasteners are not the best choice for this situation. It … Continue reading →

Posted in Advanced Ceramic Fasteners, Application, Engineered Polymer Fasteners, FAQs, High Strength, Non-Conductive, Technical Questions | Tagged non-conductive bolts, non-conductive ceramic fasteners, non-conductive fasterns, non-conductive PEEK fasteners, non-conductive polymer fasteners, non-conductive screws | Leave a comment

Molybdenum bolts for high temperature furnace

Posted on February 7, 2018 by dean

Q: I’m hoping you can help me with a high temperature issue. I’m running an ammonia plant where gases, along with hot air are heated to temps of 1800-2000F. The secondary reformer unit is made of carbon steel with refractory lining. I need bolting that can survive these temps so … Continue reading →

Posted in Advanced Ceramic Fasteners, Application, FAQs, High Temperature Resistance, Specialty Metal Fasteners, Technical Questions | Tagged alumina ceramic, ceramics for high temperture furnace, Fasteners for high temperature furnace, fasteners for vacuum furnace, Inconel 600, Molybdenum for vacuum furnace | Leave a comment

PEEK screws for high temperature to 400F & corrosion resistance

Posted on November 27, 2017 by dean

Q: I’m designing laboratory equipment that will be utilized at 325-400F and I need screws that have immunity to organics and low concentrations of acids, as well be FDA approved. Would that be a ceramic? A: You probably don’t want a ceramic screw. Though they are corrosion resistant and offer … Continue reading →

Posted in Advanced Ceramic Fasteners, Application, Corrosion Resistance, Engineered Polymer Fasteners, FAQs, High Temperature Resistance, Material, Technical Questions, Ultra Purity | Tagged acid corrosion, ceramic, FDA approved, High Temperature, organic corrosion, PEEK | Leave a comment

High temperature fastener for furnace up to 3000F

Posted on September 19, 2017 by dean

Q: I am looking for a suitable fastener for use in a high heat furnace that is running at 2000F but the actual hearth wear flames go up to 3000F. The furnace is not under vacuum and has a normal atmosphere. We are finding that the 304 bolts are failing … Continue reading →

Posted in Advanced Ceramic Fasteners, FAQs, High Temperature Resistance, Technical Questions | Tagged alumina fastener, bolt, ceramic fastener, fastener, High Temperature, screw | Leave a comment

Polymer screw for high vacuum, usable to 150C

Posted on June 27, 2017 by dean

Q: I have an application where I need pan head, insulating, high vacuum compatible, screw. It will also need to be usable at a service temperature up to 150C. Do I need a ceramic? A: Though ceramics are excellent insulators, they are usually only used for high temperature applications, where … Continue reading →

Posted in Advanced Ceramic Fasteners, Application, Engineered Polymer Fasteners, FAQs, Non-Conductive, Technical Questions | Tagged Alumina, Insulator, PEEK, PVDF, vacuum | Leave a comment

Why ceramic bolts don’t have yield strength

Posted on June 19, 2017 by dean

Q: I was looking at your site and noticed that the ceramics don’t have a yield strength. What does that mean? A: Metals and plastic have yield strengths because they start to stretch before breaking… the point where they start stretching is the “yield point” and the stress at that … Continue reading →

Posted in Advanced Ceramic Fasteners, Application, FAQs, High Strength, Material, Technical Questions | Tagged ceramics, metals, polymers, Tensile Strength, Yield Strength | Leave a comment

Difference between ziconium and zirconia fasteners

Posted on February 8, 2017 by dean

Q: What is the difference between Zirconia and Zirconium? A: Zirconia is a ceramic made from ZrO2 and Zirconium (Zr) is a refractory metal element found on the periodic table. So while Zirconia is made from Zirconium they are VERY different.

Posted in Advanced Ceramic Fasteners, FAQs, Specialty Metal Fasteners, Technical Questions, Uncategorized | Tagged Zirconia, zirconia fastsener, Zirconium, zirconium fastener, ZrO2 | Leave a comment

Are ceramic fasteners fragile

Posted on February 8, 2017 by dean

Q: Are ceramics fragile? Do I have to worry about them breaking compared to metals? A: Compared to metals ceramic fasteners are indeed fragile. Unlike a metal, there is very little yield before it fractures. Additionally ceramic fasteners and susceptible to thermal shock.

Posted in Advanced Ceramic Fasteners, FAQs, Technical Questions, Uncategorized | Tagged breakage, breaking, ceramic, metals, thermal shock | Leave a comment

Cost comparison of Zirconia vs Alumina screws

Posted on February 8, 2017 by dean

Q: Why does Zirconia cost more than Alumina? A: 1) Raw material cost: Aluminia is far more abundant, whereas Yttrium oxide which is a stabilizer for Zirconia ceramic, is a rare earth element. 2) Shaping costs: Due to its higher density it takes approximately 10x longer to grind down and shape … Continue reading →

Posted in Advanced Ceramic Fasteners, FAQs, Technical Questions, Uncategorized | Tagged Alumina, alumina ceramic, alumina fastener, alumina screw, sinter, sintering, Yttrium oxide, Zirconia, zirconia ceramic, zirconia fastener, zirconia screw | Leave a comment

Zirconia vs alumina fasteners

Posted on February 8, 2017 by dean

Q: What advantages does Zirconia have over Alumina? A: Usually for most high temperature or electric insulator applications where ceramics are needed, alumina ceramic fasteners are the most popular choice due to their properties and relatively affordable price compared to zirconia fasteners. However sometimes the extreme properties of zirconia fasteners … Continue reading →

Posted in Advanced Ceramic Fasteners, FAQs, High Strength, High Temperature Resistance, Technical Questions | Tagged Alumina, alumina fastener, aluminal ceramic, Zirconia, zirconia ceramic, zirconia fastener | Leave a comment

Bolts for high temperature vacuum furnace: Metal vs. Ceramic

Posted on February 8, 2017 by dean

Q: I’m using a high temperature vacuum furnace at 2500F. What type of material do you suggest using and is there any advantage of using a metal over a ceramic? A: Under vacuum conditions with little to no oxygen present, there are some metallic options for fasteners which include … Continue reading →

Posted in Advanced Ceramic Fasteners, FAQs, High Temperature Resistance, Specialty Metal Fasteners, Technical Questions | Tagged Alumina, alumina ceramic, alumina fastener, ceramic, Ceramic Fasteners, low thermal conductivity, molybdenum, molybdenum bolt, Molybdenum Fasteners, quenching, tantalum, tantalum bolt, tantalum fastener, tantalum scew, vacuum, vacuum furnace, ziconia fastener, Zirconia, zirconia ceramic | Leave a comment

Cost comparison of Alumina vs Zirconia fasteners

Posted on November 30, 2016 by dean

Q: Why does Zirconia cost more than Alumina? A: 1.) Raw material cost. Alumina is far more abundant, whereas Yttrium oxide which is a stabilizer for Zirconia ceramic, is a rare earth element. 2.) Shaping costs. Due to its higher density it takes approximately 10x longer to grind down … Continue reading →

Posted in Advanced Ceramic Fasteners, FAQs, High Temperature Resistance, Technical Questions | Tagged Alumina, Zirconia | Leave a comment

17-4 PH

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254 SMO

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310SS

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AL6XN

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A-286

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Alloy 20

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Alloy 330

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Alloy 926

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Aluminum 7075

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Duplex Steel

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Hastelloy

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Incoloy

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