Inch Tension Control Bolt Steel Material Grade A325 Type 1 Fastener Finish Plain Dia/Thread Size 1 In.-8 Fastener Length 2 1/2 in Fastener Thread Type UNC (Coarse) Fastener Industry Standards ASTM F1852-1 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) 120 000 psi Rockwell Hardness HRC25 Includes Grade DH Heavy Hex Nut and F436 Washer Package Quantity 130