Nord Lock 2146 Wedge Lock Washer, Advanced Corrosion Resist, Steel, 1 2 in Screw Sz, 3 32 in Max Thick, 200 PK 20YR18 This high visibility socket set This high visibility socket set features easy to read size markings and color identification bands for quick and easy selection 4 W Series EVE Lighting Certification Unrated Country of Origin China 53 in Assembly Thickness 3 32 in Inside Diameter Maximum 17 32 in Minimum Inside Diameter 17 32 in Outside Diameter Minimum 49 64 in Outside Diameter Maximum 49 64 in CAD Available Yes Material Steel Finish Advanced Corrosion Resistance Standards DIN 25201 System of Measurement Inch Material Grade Class Class 12 Package Quantity 200