براغي رأس كبس #8-32 × 1/4 بوصة | محرك سداسي | رقعة نايلون | ملولبة بالكامل | فولاذ سبائكي أكسيد حراري أسود (300 / عبوة)

Installed a hundred of these into a jig plate today, and the hex socket drive made assembly quicker than using a standard hex key. The black oxide finish hasn't worn off at all despite tight clamping. Perfectly consistent threads across the whole pack.

The nylon patch on these screws keeps them from loosening under vibration, which is exactly what I needed for a small assembly jig. They fit perfectly with a standard hex key and the black oxide finish looks clean.

I needed a bunch of these for a jig I was building, and the nylon patch is a nice touch—holds them in place without needing Loctite. The black oxide finish feels durable, and all 300 screws were in good shape with no burrs.