-20, Fastener Length 3/4 in, Head Width 0.19 in, Drive Size 3/8 in, Dimensional Standards ASME B18.028 in, System of Measurement Inch, Thread Type Coarse, Package Quantity 50.
375 in, Head Height 0.-20, Fastener Length 3/4 in, Head Width 0.13, Pack Size Small, Type Machine Screw, Washer Outside Diameter 0.Machine Screw, Head Type Hex, Material Steel, Finish Zinc Plated, Drive External Hex, Thread Size 1/4 In.