#14 × 2 بوصة براغي ذاتية الحفر (TEK) | رأس مسدس مع غسالة | فولاذ مطلي بالزنك (100 / عبوة)

The hex washer head on these #14 screws grips perfectly with my impact driver, making quick work of attaching steel roofing panels. They're self-drilling, so I didn't need to pre-drill any pilot holes, which saved a ton of time on my shed build. Zinc plating seems thick enough to handle some weather

I needed some heavy-duty fasteners for attaching steel brackets to a metal frame, and these #14 self-drilling screws saved me from having to pre-drill every hole. The hex washer head sits flush and distributes the load nicely, and the zinc plating seems durable enough for outdoor use. Only complaint

The zinc coating on these screws seems like it will hold up well, and they drilled through my light-gauge steel with no issues. Only gave four stars because a few had slightly deformed threads right out of the box.