1/4-20 × 1" براغي رأس أسطواني | محرك سداسي | رقعة نايلون | كامل الخيط | فولاذ سبائكي أسود حراري (200 / عبوة)

The nylon patch on these screws does a great job holding them in place once tightened—I used them to secure a jig on my drill press and they haven’t budged. The black oxide finish looks clean and professional, too.

I’ve been swapping out old hex bolts on a jig, and these socket cap screws seat perfectly with a standard Allen key. The black oxide finish gives them a nice, consistent look without any rough edges.

The nylon patch on these is a lifesaver—they hold tight in my tooling fixtures without backing out, even under vibration. Black oxide finish looks clean and the hex drive seated perfectly on the first try. Exactly what I needed for precision assemblies.