Carriage Bolt, Inch, Neck Type Square, Basic Material Steel, Material Grade Grade A, Fastener Finish Plain, Dia./Thread Size 5/16 In.-18, Fastener Length 1 in, Fastener Thread Direction Right Hand, Fastener Thread Type UNC (Coarse), ASME B18.5, Drill Size 5/16 in, Head Dia. 0.688 in to 0.719 in, Head Height 11/64 in, Head Type Round, Square Height 0.156 in to 0.187 in, Square Width 0.307 in to 0.324 in, Tensile Strength 74,000 psi, Package Quantity 800
Carriage Bolt, Inch, Neck Type Square, Basic Material Steel, Material Grade Grade A, Fastener Finish Zinc Plated, Dia./Thread Size 7/16 In.-14, Fastener Length 4 1/2 in, Fastener Thread Direction Right Hand, Fastener Thread Type UNC (Coarse), ASME B18.5, Drill Size 7/16 in, Head Dia. 0.907 in to 0.969 in, Head Height 15/64 in, Head Type Round, Square Height 0.219 in to 0.250 in, Square Width 0.431 in to 0.452 in, Tensile Strength 74,000 psi, For Use With Grade 2 Zinc Nuts, Package Quantity 120