Lightweight Fasteners

The highest strength to weight mateirals

Lightweight Polymer Fasteners

One of the best methods to save considerable weight is to replace metallic fasteners with lightweight, metal-like polymer fasteners. Recent developments in polymer technology have finally produced lightweight polymers that can rival metals in may of their physical and mechanical properties. Taking weight into consideration, polymers such as lightweight PEEK and PAI (Torlon®), can provide specific strengths that exceed that of metallic fasteners.

Lightweight Aluminum Fasteners

If a polymer can't be used, perhaps the best choice for many lightweight fastener applications is Aluminum 7075 bolts. Often used in aerospace for their light weight strength, Aluminum 7075 screws offer strength that is comparible to many grades of steel at a fraction of the density. They can also be tempered to several conditions including 7075-T6 for different levels of strength. In comparison to Titanium grade 5, 7075 is not as strong (83ksi tensile strength vs 148 if titanium), but they are lighter weight.

Lightweight Titanium Fasteners

One property that stands out when compared to other metal fasteners is that titanium screws, especially titanium grade 5 screws, have the highest strength-to-weight ratio that is commercially available. This makes titanium fasteners ideal for applications that require both lightness of weight and excellent strength such as oil & gas (down-hole), military and sporting goods. Titanium screws made of grade 5 titanium are 4 times stronger than 316 stainless steel at nearly half the weight.

The chart below can be used to compare the properties of our lightweight, metal-like polymer fasteners with the properties of metallic fasteners.

Torque Calculation

Bolt Weight Calculator

Vacuum Gaskets - For Ultra Low Pressure Sealing

Gaskets for vacuum chambers requiring extremely low leak rates

Gaskets for vacuum chambers that minimize leakage are critical in order to maintain the quality of the finished product.  No matter if its CVD, PVD, DVD, heat treating etc., maintaining a low vacuum and minimizing oxygen contamination is essential. If having the lowest leak rate is important to your process, our Revolution and JG / JP semi-metallic vacuum gaskets are the best available to industry.

Extremely Low Leak Rate

Our semi-metallic vacuum gaskets feature a metallic core which creates metal-to-metal seal as well as as soft sealing PTFE or graphite section. As a result, an extremely tight seal is created, having a leak rate that is 15,000x lower than typical gaskets used in vacuum systems.

No Outgassing

Beyond sealing, our vacuum gaskets will NOT outgas. A key feature to our vacuum gaskets is the metal-to-metal seal that protects and isolates the soft sealing graphite or PTFE from the process and air. Because of this design, no extra time is wasted during pump-down and the desired vacuum is achieved faster.

High Temperature Stability

The JG / JP vacuum gaskets can operate at elevated temperatures up to 1000°C. The Revolution vacuum gaskets up to 500°C

Revolution Gasket	JG/JP Gasket
Parameters Temperature: Cryogenic to 932°F / 500°C Pressure: Vacuum to 928psi / 64bar Pressure class: 400 / PN64 Carrier metal:  Stainless steel Thickness: 0.063" / 1.6mm Max dimension: 21in / 540mm	Parameters Temp: Cryogenic to 1830°F / 1000°C Pressure: Vacuum to 5800psi / 400bar Pressure class: 1500 / PN400 Carrier metal:  Stainless & Specialty alloys Thickness: 0.098" to 0.394" (2.5 - 10mm) Max dimension: 144in / 4000mm
Applications Ideal for heat transfer fluids and oils Designed to handle cycling & vibration Replaces: PTFE / Graphite / Fiber Gaskets	Applications Extreme pressure & temperatures Corrosive media, H2, hazardous service Replaces: Spiral Wound / Kammprofile
Advantages Leak rate 370x lower than graphite gaskets Spring like design for consistent sealing Very low sealing force required Minimal graphite residue on change out Metal sealing protects PTFE / Graphite	Advantages Leak rate 15000x less than spiral wound Extreme pressure / vacuum sealing Highest temperature stability Corrosion & temp resistant alloys Customizable for dissimilar flanges & gaps Very low sealing force required Minimal graphite residue on change out Metal sealing protects PTFE / Graphite