The Spike® anchor is formed with an "s" shaped configuration at the working end of the anchor to create an expansion mechanism

5/8-18 x 8 Hex Cap Screw SS 18-8 (A2)

9/16-18 x 1 1/2 Socket Cap Screw Alloy

5/8-11 x 3 Hex Cap Screw SS 316 (A4)

With solid surfaces

1-8 x 6 Simpson Wedge Anchor 316 SS (5) 3/4-16 Hex Cap Screws 316 Stainless Steel The Spike® anchor is formed1 8 x 6 Simpson Wedge Anchor 316 SS (5) . WEDGE ALL wedge anchors are a non bottom bearing, wedge style expansion anchor for use in solid concrete or grout filled masonry. A one piece clip ensures uniform holding capacity that increases as tension is applied. The threaded stud version is available in eight diameters and multiple lengths. A single size tie wire version is available for wire supported fixtures. Threaded studs are set by tightening the