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

With a 1/2-13 x 2 1/2 thread size

Low profile head diameter is twice the rivet body diameter

1300 pieces in a bulk keg

9/16-18 x 1 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (25)

2-1/2" Carbide Tipped Hole Cutter, 1" Depth of Cut, CTH2500 Strong-Drive® SDPW Deflector Screw The Spike® anchor is formedWorks like an annular cutter, except no magnetic drill needed! Carbide tipped hole cutters are good for cutting stainless steel, cast iron, iron, sheet metal and copper. It also works well with abrasive materials like high density resin and metal plates. Has auto ejecting slug and can cut over 300 holes in stainless steel plate. Comes with Pilot Drill and Hex Key.