Inch Tension Control Bolt Steel Fastener Finish Plain Dia/Thread Size 1 1/8 In.-7 Fastener Length 3 in Fastener Thread Type UNC (Coarse) Fastener Industry Standards ASTM F2280-1 Thread Length 2 in Fastener Thread Direction Right Hand Head Dia 2 3/8 in Head Height 45/64 in Tensile Strength (PSI) 150 000 to 173 000 Rockwell Hardness HRC33 Includes Grade DH Heavy Hex Nut and F436 Washer Package Quantity 85