براغي رأس مقبس 1-8 × 2-1/4 بوصة | محرك سداسي | رقعة نايلون | ملولبة بالكامل | فولاذ سبائكي مؤكسد أسود حراري (10/عبوة)

The black oxide finish on these screws looks clean and professional against the steel components in my latest jig build. They threaded smoothly into tapped holes without binding.

The hex socket drive fits my Allen wrench perfectly without any slipping, which is a relief. Used these to secure a jig on my drill press, and the nylon patch holds them tight even with vibration. Exactly the right length for heavy machinery repairs.

The black oxide finish on these screws looks great and seems to add a nice layer of protection against rust. I used them to secure a jig on my mill, and the nylon patch held them tight without needing loctite.