HOLO-KROME 77446 براغي رأس مقبس #10-32 × 3 بوصة | محرك مقبس سداسي | فولاذ سبائكي أكسيد أسود حراري (100/عبوة)

The thermal black oxide finish on these screws gave my assembly jig a clean, professional look and held up well against minor shop grime. They threaded smoothly into tapped holes without binding.

Used a full bag of these on a jig fixture and every single one threaded clean without any burrs or binding. The alloy steel feels plenty sturdy for the torque I put on them, and the black oxide finish hasn't worn off where I wrenched them down.

The black oxide finish on these screws gives them a nice uniform look, and the hex drive seated perfectly in my allen wrench without any wobble. Used them to secure a jig plate on my drill press, and they held tight even under vibration.