18-8 Stainless Steel Split Lock Washer

Description Material 18-8 Stainless Steel For Screw Size 1/4“ ID 0.260″ OD 0.487″ Thickness 0.062″ Washer Type Split Lock Split Lock Washer Type Standard System of Measurement Inch Hardness Rockwell C35 Specifications Met ASME B18.21.1 RoHS RoHS 3 (2015/863/EU) Compliant REACH REACH (EC 1907/2006) (01/23/2024, 240 SVHC) Compliant DFARS Not Specialty Metals Compliant Country of Origin Italy, Peoples Republic of China, Taiwan, or United States USMCA Qualifying No Schedule B 731821.0000 ECCN EAR99 As a screw is tightened, these washers flatten to add tension to the joint, counteracting fatigue around the joint from small amounts of vibration. This makes them a common choice to prevent fasteners from loosening. However, they resist the least amount of vibration compared to other locking washers. These washers are compatible with fasteners that have right-hand threads to prevent loosening. The uneven split ends bite into fasteners for a tight grip, but they won’t work with hardened surfaces. These washers hold better than curved or wave washers. They are not reusable after tightening. 18-8 stainless steel washers have good chemical resistance and may be mildly magnetic. Washers that meet ASME B18.21.1 adhere to strict dimensional standards.