Square Head Bolt Square Head Bolt Inch Steel Fastener Finish Zinc Yellow Material Grade Class 5 Dia/Thread Size 3/4 In.-10 Fastener Length 6 in Fastener Thread Direction Right Hand Fastener Thread Type UNC (Coarse) ASME B18.2.1 SAE J429 Head Height 1/2 in Head Width 1 1/8 in Flange Dia 3/4 in Thread Style Fully Threaded Rockwell Hardness HRC25 Head Type Square Head Package Quantity 10