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The two-way spring valve allows for fast inflation and deflation—typically under 30 seconds—while preventing air loss during filling
The dependable self-seal strip creates a tight closure to safeguard contents from dirt
Each screw is crafted with a square-drive recess for reduced cam-out
Professional-Grade Engineering: Backed by Simpson Strong-Tie testing and performance data
the screw features a 6-lobe drive that reduces cam-out and extends bit life
ST Fastening #12 X 4-1/2" InsulDrill Metal Roofing Screw - Light Gray | Qty. 48,000 (Pallet) Galvanized A307 Hex Bolts The two-way spring valve allowsThe ST Fastening #12 InsulDrill Metal Roofing Screw is built to meet the demands of commercial and industrial insulation applications. Whether youre anchoring insulation boards to steel decks or securing metal panels to purlins, these screws are engineered for performance, strength, and longevity. Designed with precision threading and a sharp self drilling point, InsulDrill screws eliminate the need for pre drillingreducing labor time while delivering