براغي حفر ذاتي (TEK) #8 × 1 بوصة | رأس ويفر فيليبس | فولاذ مطلي بالزنك (2000/عبوة)

The wafer head really helped distribute pressure evenly when I was attaching steel straps to a frame. Drilled right in without any pilot hole needed, and each screw held tight. Pack of 2000 should last me through several jobs.

Bought these to fasten metal brackets to steel framing and the self-drilling tip saved me from pre-drilling every hole, which was the whole reason I grabbed them. The wafer head sits flush without stripping, and a full box of 2000 should last me through several projects.

The self-drilling tip punched through 20-gauge steel without any pilot hole, which saved me a ton of time on the shed roof. The wafer heads sit flush enough that nothing snags, and the zinc coating hasn't shown a hint of rust after a few damp weeks.