براغي ذات رأس أسطواني #5-40 × 9/32 بوصة | محرك سداسي | ملولبة بالكامل | فولاذ سبائكي مع أكسيد أسود حراري (100 / عبوة)

The black oxide finish on these screws gives them a nice, low-glare look that matches my tooling perfectly, and the hex socket drives cleanly without stripping. I used a full bag to secure a set of custom jig fixtures, and every single one threaded in smoothly.

Used these to rebuild a small jig and the thermal black oxide finish looks sharp while holding up without any rust. Counted the bag when it arrived and all 100 were there, threads chased clean into every hole.

I needed some small screws for a fixture repair, and the black oxide finish on these blends perfectly with the tooling. The threads cut cleanly into the tapped hole without binding. Surprised by the consistent quality across the whole pack.