Carriage Bolt Inch Neck Type Square Basic Material Steel Material Grade Grade A Fastener Finish Zinc Plated Dia/Thread Size 3/4 In.-10 Fastener Length 4 in Fastener Thread Direction Right Hand Fastener Thread Type UNC (Coarse) ASME B18.5 Drill Size 3/4 in Head Dia 1.469 in to 1.594 in Head Height 25/64 in Head Type Round Square Height 0.375 in to 0.406 in Square Width 0.741 in to 0.768 in Tensile Strength 74 000 psi For Use With Grade 2 Zinc Nuts Package Quantity 10