7 for torsional strength & drill speed

like corridor ledgers

Sitting flush also means it’s easy to finish the drilled surface with drywall and trim

1-8 x 7 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (40)

they are designed to Simpson's proprietary standard to prevent splitting and deliver reliable results

1-8 x 9 1/2 A325 Type 1 Heavy Hex Bolt Hot Dipped Galvanized Domestic USA - Bulk Keg (40) 1 1/4-12 Grade 8 Hex Cap Screws Yellow Zinc Plated - Domestic USA 7 for torsional strength &This Heavy Hex Bolt is made from Grade 5 Steel and is Hot Dipped Galvanized for a tough, corrosion resistant finish. This one size fits all bolt is a perfect fit for your 1 8 x 9 1 2 inch projects. Comes in a bulk keg of 40 pieces.