براغي رأس كبس 1/4-28 × 7/8 بوصة | محرك سداسي | رقعة نايلون | ملولب بالكامل | فولاذ سبائكي، أكسيد أسود حراري (200/عبوة)

Used these for a jig I was building, and the nylon patch really holds them tight even with vibration. The hex socket drive makes them easy to install in tight spots.

The black oxide finish on these screws gives them a nice, uniform look that’s held up well in my tooling setup, and the nylon patch means they stay put without needing lock washers. Packed 200 to the box, which is a solid value for precision work.

The nylon patch is a nice touch—these hold their torque without needing threadlocker, which saved me time on a jig build. The black oxide finish looks clean and the hex drive fits snugly, no stripping issues so far.