7 for torsional strength and drill speed

3/4-16 x 3 3/4 Grade 8 Hex Cap Screw Yellow Zinc Plated

2 1/2 USS Flat Washer Plain

Phosphorus: Maximum 0

1/4 x 1 1/4 Phillips Pan Wall-Dog™ Light Duty Anchors Zinc Plated - Box (100)

9 x 2 1/2 Simpson Strong-Drive® SD Connector Screw Mechanically Galvanized Coating Class 55 - Box (500) 7/8-9 Grade 5 Hex Cap Screws Zinc Plated - Domestic USA 7 for torsional strength and9 x 2 1 2 Simpson Strong Drive SD Connector Screw Mechanically Galvanized Coating Class 55 Box (500) . The Strong Drive SD Connector screw is specifically designed to replace nails in certain Simpson Strong? Tie connectors, and is the only screw approved for that application. The load rated SD screw has been tested and approved for use in many popular Simpson Strong? Tie products. In certain applications screws are easier and more convenient to