براغي ذات رأس مقبس 1/4-20 × 1-1/4 بوصة | محرك سداسي | رقعة نايلون | كاملة الخيوط | فولاذ سبائكي أسود حراري (100/عبوة)

I used these for building a jig in my shop and the black oxide finish held up well against the oily wood. The hex socket drive made them easy to install in tight spots.

The nylon patch on these screws is a nice touch for holding tight under vibration, and the black oxide finish looks clean on my jig setup. They threaded smoothly into tapped holes without any binding.

The nylon patch on the threads is a nice touch—they held firm during assembly without needing any threadlocker. I’ve only used about thirty so far, but the black oxide finish looks consistent and the hex drive seated cleanly every time. Just wish the package came with a small bit of extra length on