Simpson Strong-Tie #12 x 1-3/4" Self-Drilling TB Wood-To-Steel Screw, Square Flat Head - Black Phosphate, Qty. 2,000 PA Purlin Anchors these screws deliver long-lasting corrosion

these screws deliver long-lasting corrosion resistance

Diaphragm Connection: Designed to connect adjoining wood structural panels in diaphragm systems

enabling a snug fit asquare pipes of varying sizes

Ensure the screw is driven until the head is flush with the wood surface

316 Stainless Steel – Maximum corrosion resistance in harsh marine environments

Simpson Strong-Tie #12 x 1-3/4" Self-Drilling TB Wood-To-Steel Screw, Square Flat Head - Black Phosphate, Qty. 2,000 PA Purlin Anchors these screws deliver long-lasting corrosionThe Simpson Strong Tie TBP1245R2000 Strong Drive TB Wood to Steel Screw with black phosphate coating is designed for high performance fastening of wood to steel in interior, dry environments. This structural screw features a flat head with under head nibs for clean countersinking, a #4 drill point with wings to eliminate wood splitting, and a 6 lobe recess for controlled driving torque. The black phosphate finish provides smooth driving and a clean