براغي ذاتية الحفر (TEK) #6 × 1/2" | رأس مقبس بمحرك فيليبس | فولاذ مؤكسد أسود (5000 / عبوة)

Just got these in for a metal roofing project, and the self-drilling tip saves so much time since you don't need to pre-drill. The 5000-count box is heavy but will last me through multiple jobs.

The black oxide coating on these screws held up perfectly during a metal roofing job, no rust even after a week of rain. They drilled through 18-gauge steel smoothly without needing a pilot hole. Definitely saved time versus separate drilling and fastening steps.

Went through a full 5000 of these on a metal roofing job and the self-drilling tip saved me from pre-drilling every single hole. The phillips head seated nicely without stripping, and the black oxide finish held up better than I expected.