Red Head Trubolt Carbon Steel Wedge 3/4 X 4-3/4 Inch Anchor is used for structural columns, machinery, equipment, and non-corrosive environments. Trubolt Wedge anchors feature a stainless steel expansion clip, high-strength threaded stud body, nut and washer. The anchor bodies are made of plated carbon steel, and the expansion clip consists of a split cylindrical ring with undercutting grooves. The exposed end of the anchor is stamped to identify anchor length. Stampings should be preserved during installation for any subsequent embedment verification. The anchor diameter equals hole diameter, and they are non bottom-bearing, so they may be used in hole depth exceeding anchor length. Red Head anchors can be installed through the work fixture, eliminating hole spotting Inspectable torque values, indicating proper installation. Specs: Thread Length (inch) -- 2-7/8; Anchor Diameter and Drill Bit Diameter (inches) -- 3/4 - 10; Overall Length (inch) -- 4-3/4; Max. Thickness of Materials to be Fastened (inch) -- 3/4; Quantity per Box -- 10.