#14 × 1-1/2 بوصة براغي ذاتية الثقب (TEK) | رأس مسدس سداسي | فولاذ مطلي بالزنك (300/علبة)

I've used these for attaching metal roofing panels and the self-drilling tip saved me from pre-drilling every hole. The zinc coating seems sturdy enough to handle outdoor exposure. Pack of 300 should last me through several projects.

Drilled through 14-gauge steel without any pilot hole, and these held tight with no stripping. The hex washer head gave my socket a solid grip, and the zinc coating hasn't shown any rust yet after a rainy week.

These #14 self-drilling screws cut through metal like butter with the hex washer head gripping the socket perfectly. I used them to fasten some steel brackets to a beam and the self-tapping tip made the job go much faster than drilling pilot holes separately. The zinc plating on these seems solid en