Hex Head Cap Screw Head Type Hex Diameter 1/4 In. Grade Non Graded Material 18-8 Stainless Steel Finish Plain Thread Size 1/4-20 Thread Type Coarse Length under Head 3/8 In. Thread Length 3/8 In. Head Height 5/32 In. Head Width 7/16 In. Thread Style Fully Threaded Thread Direction Right Hand Tensile Strength 100 000 psi Rockwell Hardness B95 Meets/Exceeds ASTM F593 Package Quantity 100