براغي ذاتية الحفر (TEK) #8 × 2 بوصة | رأس سداسي غير مشقوق | فولاذ مطلي بالزنك (700 / عبوة)

The hex washer head really locked down tight on my metal shed frame without stripping out, the self-drilling tip saved me from pre-drilling a single hole. Seven hundred in the box is plenty for a couple of projects, and the zinc coating looks clean so far.

Got these for a steel racking job and the hex washers seated flush against every beam. The zinc coating seems solid too, no rust worries after a few weeks of rain on the job site.

Drilled through a metal stud without needing to pre-punch a hole, which saved me at least 15 minutes on my garage shelving project. The zinc finish seems durable so far, and the hex head bit held perfectly in my driver without slipping.