BBI 451655 Cap Screw, 1-3/8-6 UNC x 6 in, 2-1/16 in Hex Drive, Grade 8, Alloy Steel
BBI Cap Screw, UNC, 1-3/8-6, 6 in Overall Length, Hex Head, 2-1/16 in Head, Hex Drive, 2-1/16 in Drive, Fillet Neck, 1-3/8 in Shank, 150000 psi Tensile, HRC 33-39 Hardness, Alloy Steel, 8, Plain