Inch Tension Control Bolt Steel Fastener Finish Plain Dia/Thread Size 1 In.-8 Fastener Length 4 1/2 in Fastener Thread Type UNC (Coarse) Fastener Industry Standards ASTM F2280-1 Thread Length 1 3/4 in Fastener Thread Direction Right Hand Head Dia 2 5/32 in Head Height 39/64 in Tensile Strength (PSI) 150 000 to 173 000 Rockwell Hardness HRC33 Includes Grade DH Heavy Hex Nut and F436 Washer Package Quantity 95