Lock Washer, External Tooth, 410 Stainless Steel, Finish Plain, Fits Bolt Sizes 3/8 In., Inside Dia. 0.398 In., Outside Dia. 0.694 In., Thickness 0.040 In., Thickness Tolerance 0.032-0.04 In., Color Silver, Rockwell Hardness C40, Absorbs Shock and Vibration, For Use With Large Round, Pan, or Binding Head Screws, Meets/Exceeds ANSI B18.22.1., Refills -, Package Quantity 50








