These anchors secure themselves using a mechanical wedging effect. They feature 316 stainless steel construction. This listing is for pkg. of 5. Technical Specification Item Wedge Anchor Wedge Anchor Type Wedge Anchor Seismic Approved No Anchor Material Stainless Steel Material Grade 316 Fastener Finish Plain Anchor Dia. 3/4 Anchor Length 7 Max. Work Thickness 1/4 Thread Length 2 Thread Size 3/4-10 Min. Embedment 3-3/8 Embedment In Concrete 6-3/4 Ultimate Pullout (Lb.) 16201 Ultimate Shear (Lb.) 15126 Ultimate Shear in 3000 PSI Concrete (Lb.) 15126 Ultimate Shear in 4000 PSI Concrete (Lb.) 15126 Ultimate Tension (Lbs.) 16201 Ultimate Tension in 3000 PSI Concrete (Lb.) 13278 Ultimate Tension in 4000 PSI Concrete (Lb.) 16201 Agency Compliance UL and FM Meets/Exceeds GSA SPEC FF-S-325C, GROUP II, TYPE 4, CLASS 1 Includes Nut and Washer