Lock Washer, 316 Stainless Steel, Plain Finish, Fits Bolt Sizes 5/16″, Inside Dia. 0.340″, Outside Dia. 0.530″, Thickness 0.080″, Thickness Tolerance +/- 0.01″, Rockwell Hardness Min. 52 HRC Case Hardened, Meets/Exceeds DIN 25201, Package Quantity 200








