براغي ذات رأس مقبس 5/8-11 × 1-1/2 بوصة | محرك سداسي برأس زر | ملولبة بالكامل | سبيكة فولاذية مؤكسدة سوداء حرارياً (50 / عبوة)

Installed these on a fixture at work and the thermal black oxide finish gives them a nice, uniform look that resists smudging. The hex socket drive seats a wrench perfectly with zero wobble, and all 50 threads were clean with no burrs.

Installed these on a jig I’m building, and the hex socket drive made tightening them in tight spots so much easier. The threading cut in cleanly without any binding, and the black oxide finish looks more uniform than I expected for the price.

The black oxide finish on these screws holds up really well—I’ve been using them on a jig and they haven’t shown any rust after a few weeks. The hex socket drive engages cleanly too, no stripping on the first turn.