Metric Inch PRODUCT SIZEPROPERTY CLASSSTANDARDSocket Head Cap ScrewM3 to M30A2 - 70/80, A4 - 70/80DIN 912 / ISO 4762Hex Head Screw (Full Thread)M3 to M30A2 - 70/80, A4 - 70/80DIN 933 / ISO 4017Hex Head Bolt (Partial Thread)M4 to M30A2 - 70/80, A4 - 70/80DIN 931 / ISO 4014Hex NutM3 to M30A2 - 70/80, A4 - 70/80DIN 934 / ISO 4032Plain WasherM3 to M64A2, A4DIN 125 AFlat - Section Spring WasherM3 to M36A2, A4DIN 127 BSquare - Section Spring WasherM3 to M36A2, A4DIN 7980Threaded RodM3 to M36A2 - 70/80, A4 - 70/80DIN 975 PRODUCT SIZEGRADESTANDARDSocket Head Cap Screw3/16 to 1F837B & F837EASME B18.3 / F837Hex Head Bolt / Screw1/4 to 1F593C, F593D & F593G, F593HASME B18.2.1 / ASTM F593304, 316 Hex Nut1/4 to 1 1/2F594C, F594D & F594G, F594HASME B18.2.2 / F594Plain Washer1/4 to 1304, 316ANSI B18.21.1