BBI 711082 Semi-Standard Shoulder Screw, 5/16-18, 3/16 in Hex Socket Drive, Alloy Steel
BBI Shoulder Screw, Semi-Standard, 5/16-18 Screw, Round Head, Hex Socket Drive, 3/16 in Drive, UNC, 3/8 in Shoulder Dia, 5 in Shoulder Length, HRC 36 - 43 Hardness, Alloy Steel, Plain