براغي رأس مقبس 3/4-10 × 1 بوصة | رأس زر سداسي | فولاذ سبائك أكسيد أسود حراري (25 / عبوة)

I needed some heavy-duty screws for a new jig I was building, and these black oxide ones fit perfectly in my tooling setup. The 3/4-10 thread is coarse but precise, and the hex socket drive held without stripping under decent torque.

Got these for a fixture I was building at work and the hex socket drive made installation a breeze even in tight spots. The thermal black oxide finish looks professional and hasn't shown any wear after repeated use.

The black oxide finish is flawless, and the hex socket drive bites cleanly without stripping—these are holding my fixture table together rock solid. Twenty-five pieces for this price is a steal.