Simpson CD25212M 1/4" X 2-1/2" Mushroom Head Crimp Anchor - Zinc, Pkg 100 Hex Head 410 Stainless Steel Concrete Screws Type 17 point - drives

Type 17 point - drives quickly into material and minimizes splitting

Engineered for speed and grip in metal-to-metal connections

Notice - This connector is designed for Rough Cut lumber NOT nominal lumber (most common)

Its gripping section holds the bolt without a nut

Simpson CD25212M 1/4" X 2-1/2" Mushroom Head Crimp Anchor - Zinc, Pkg 100 Hex Head 410 Stainless Steel Concrete Screws Type 17 point - drivesThe Simpson Strong Tie Crimp Drive anchor is an easy to install expansion anchor for use in concrete and grout filled block. The pre formed curvature along the shaft creates an expansion mechanism that secures the anchor in place and eliminates the need for a secondary tightening procedure. This speeds up anchor installation and reduces the overall cost. The low profile mushroom head works excellent for attaching wood or light gauge steel to concrete