Flooring Screw. Flat Head, phosphate. #8 x 1 1/2 in. 1 lb. Recommended for installing all sub flooring, plywood or underlayment. Dual action threads allow for speedy installation and maximum pull-out strength.
- Recommended for installing all sub flooring, plywood or underlayment
- Underlayment sheets are usually 1/4" thick and 4' by 4' and are used prior to tiling or carpeting dual action threads allow for speedy installation and maximum pull-out strength