Carriage Bolt, Inch, Neck Type Square, Basic Material Steel, Material Grade Grade A, Fastener Finish Plain, Dia./Thread Size 3/8 In.-16, Fastener Length 4 1/2 in, Fastener Thread Direction Right Hand, Fastener Thread Type UNC (Coarse), ASME B18.5, Drill Size 3/8 in, Head Dia. 0.782 in to 0.844 in, Head Height 13/64 in, Head Type Round, Square Height 0.188 in to 0.219 in, Square Width 0.368 in to 0.388 in, Tensile Strength 74,000 psi, Package Quantity 170
Carriage Bolt, Inch, Neck Type Square, Basic Material Steel, Material Grade Grade A, Fastener Finish Zinc Plated, Dia./Thread Size 1/2 In.-13, Fastener Length 4 in, Fastener Thread Direction Right Hand, Fastener Thread Type UNC (Coarse), ASME B18.5, Drill Size 1/2 in, Head Dia. 1.032 in to 1.094 in, Head Height 17/64 in, Head Type Round, Square Height 0.250 in to 0.281 in, Square Width 0.492 in to 0.515 in, Tensile Strength 74,000 psi, For Use With Grade 2 Zinc Nuts, Package Quantity 10