The Power-Stud anchor is a fully threaded, torque-controlled, wedge expansion anchor designed for consistent performance in cracked and uncracked concrete. The bolt is a construction grade fastener manufactured with a stainless steel body and expansion clip that is commonly used as a climbing anchor. Nut & washer included.. 316 Stainless Steel Power Stud Specs: 1/2" Bolts TORQUE TO: 40 Foot Pounds 3/8" Bolts TORQUE TO: 25 Foot Pounds