براغي رأس كبس #10-24 × 3/8 بوصة | محرك سداسي | رقعة نايلون | ملولبة بالكامل | فولاذ سبائكي مطلي بأكسيد حراري أسود (200 / عبوة)

Installed these on a small jig I built for drilling alignment holes—the nylon patch really does hold them tight under vibration. The black oxide finish looks clean and hasn't shown any wear after a few weeks of use.

The hex socket drive worked perfectly with my T-handle Allen wrench, no stripping at all. The black oxide finish gives them a nice, uniform look that matches my jig hardware.

The nylon patch is a lifesaver for keeping these screws locked in place on my milling fixture—no more backing out during operation. The black oxide finish gives them a clean, professional look that resists wear well on the shop floor. Exactly what I needed for precision assemblies.