Asymmetrical thread pattern resists material slippage during pull out and vibration

these screws are engineered to reduce wood splitting while providing a clean

PAMFast Subfloor Autofeed Screws are the perfect choice for attaching plywood or OSB subfloors

while the #2 square drive makes them easy to fasten

1 1/4-7 x 2 1/4 A325 Type 1 Heavy Hex Bolt Hot Dipped Galvanized Domestic USA - Bulk Keg (90) Long Arm Hex Keys Alloy Asymmetrical thread pattern resists materialThis keg of 90 1 1 4 7 x 2 1 4 A325 Type 1 Heavy Hex Bolts is domestically produced and hot dipped galvanized for superior corrosion resistance and robust strength. Meets the specifications of ASTM A325.