5/8-18 × 2" براغي غطاء مقبس | رأس زر محرك سداسي | ملولب بالكامل | سبيكة فولاذ مؤكسد أسود حراري (2 / عبوة)

The black oxide finish is holding up great on my jig, and the hex socket drive gripped the Allen key without any stripping. These are solidly built for the price, and the fully threaded length gave me plenty of bite for a snug fit.

Got these for a fixture plate on my mill and the hex socket drive seated perfectly with no wobble. The thermal black oxide feels slick and doesn't leave that gritty residue I've dealt with on other screws. Threads ran smooth all the way in, so these are going back on my reorder list.

The black oxide finish looks proper for machine work, and the hex socket drive seated my wrench without any stripped edges. Threads ran smooth into my jig plate, though I wish they came with a bit more clearance for tight spots.