TimberLOK® Heavy Duty Wood Screws are designed with shear values stronger than 3/8 inch lag screws

#3 square drive

1-8 x 1 1/2 Grade 8 Hex Cap Screw Yellow Zinc Plated

7 x 1 1/4 Simpson Trim-Head Wood Decking Screws - Square Drive 305 SS - Bulk Pail (5000)

1-8 x 7 Hex Cap Screw SS 316 (A4)

8 x 2 Phillips Flat Particle Board Screw w/ Nibs T17 Black Oxide - Carton (3,500) 7/8-14 Grade 8 Hex Cap Screws Yellow Zinc Plated TimberLOK® Heavy Duty Wood Screws8 x 2 Phillips Flat Particle Board Screw w Nibs T17 Black Oxide Carton (3,500) . Wood screws used for interior wood applications. Asymmetrical thread pattern resists material slippage during pull out and vibration. Superior holding power.