Simpson Strong-Tie #10 x 1-7/16" Self-Drilling Screw with Wings, Wafer Head - 410 Stainless Steel, Qty. 4,500 Flat Head Structural Screws or Strong-Drive SD structural screws

or Strong-Drive SD structural screws

This product is intended for use with Rough Cut 4x4 lumber but is also available in other sizes

Optimized Design: Features a four-fold seat and tapered base to reduce deflection and enhance strength

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Simpson Strong-Tie #10 x 1-7/16" Self-Drilling Screw with Wings, Wafer Head - 410 Stainless Steel, Qty. 4,500 Flat Head Structural Screws or Strong-Drive SD structural screwsWhen you need to fasten wood, plywood, or OSB directly to steel framing, without predrilling, the Simpson StrongTie F10C144WDB SelfDrilling WaferHead Screw with Wings is built for the job. This precisionengineered screw features a selfdrilling point with breakoff wings that clear the hole and prevent climbing up the shank, while the lowprofile wafer head offers clean seating with full bearing. Made of 410 stainless steel and fulllength