Simpson CSD25312 1/4" X 3-1/2" Countersunk Head Split-Drive Anchor - Zinc, Pkg 100 Smooth Shank - Common Nail The Simpson ECCQ64SS-SDS2

The Simpson ECCQ64SS-SDS2

Hi-Lo Thread Design: Cuts efficiently into concrete and masonry while minimizing installation torque

Confirm the bolt is held at the correct height

high-performance design

Simpson CSD25312 1/4" X 3-1/2" Countersunk Head Split-Drive Anchor - Zinc, Pkg 100 Smooth Shank - Common Nail The Simpson ECCQ64SS-SDS2The Split Drive anchor is a one piece expansion anchor that can be installed in concrete, grout filled block and stone. As the anchor is driven in, the split type expansion mechanism on the working end compresses and exerts force against the walls of the hole. The Countersunk head allows for a smooth surface when attaching wood or light gauge steel to concrete and grout filled block surfaces. Installation: For Common Rafters: Drill a hole in base