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

The zinc plating on these held up well even when I drove them into painted metal—no flaking or rust spots after a week. The Phillips head seated firmly in my driver without stripping, which is more than I can say for cheaper packs I've used.

The self-drilling tip chewed through 20-gauge steel without me having to pre-drill a single hole, which saved me an entire afternoon. The zinc coating looks clean and none of the bits snapped, even when I pushed them at an angle. All 2000 came in one solid box and the phillips heads seated perfectly

Used a full box on a metal roofing project and these TEK screws drilled right through without needing a pilot hole. The zinc coating seems solid, no rust after a week of rain.