#14 × 3" براغي ذاتية الحفر (TEK) | رأس غسالة سداسي | فولاذ مطلي بالزنك (100 / عبوة)

Finally got these to secure some heavy shelving brackets into metal studs—the self-drilling tip saved me so much time since I didn't have to pre-drill. Hex washer head gave a solid grip too.

Used these to attach steel brackets to a metal frame, and the self-drilling tip cut right through without needing to pre-drill any pilot holes. The hex washer head seated perfectly and didn’t strip even with my impact driver cranked up.

Finally got my garage shelving bolted down tight — the hex washer head really spreads the load evenly on the metal beams. The self-drilling tip saved me from having to pre-drill a single hole.