A variety of washers are available: • Standard flat washers including SAE, USS, general purpose, MilSpec and Oversized • Lock washers (split lock washers) • Belleville spring washers • Fender washers • Spring washers • Vented washers • Custom washers per drawing Washer Specifications | | | Flat Washers • ASME 18.21.1 SAE / USS • DIN 126 / ISO 7091 • DIN 125 / ISO 7089 / ISO 7090 | Lock Washers • ASME B18.21.1 • DIN 127 / ISO 7090 | Belleville Washers • DIN 6796 / ISO 10690 | Washer Sizes • #00 - 6" • M1.2 - M150 | | | Click here to visit our tech question posting on understanding the differences between general purpose, SAE, USS and oversized flat washers. | | Washer Material Availability Engineered Polymers Advanced Ceramics Specialty Metals |