HOLO-KROME 730003140 براغي رأس مقبس 3/4-16 × 2-3/4 بوصة | محرك مقبس سداسي | فولاذ سبائكي مؤكسد أسود حراري (25/عبوة)

The black oxide finish on these is smooth and uniform, and the hex socket engagement feels solid—no rounding out on the driver. Threads were clean and seated effortlessly into a tapped hole on my jig setup. Exactly what I expect from alloy steel cap screws.

I needed some heavy-duty fasteners for a jig I was building, and these alloy steel screws threaded perfectly into tapped holes with no binding. The hex socket drive made installation quick, and the 25-pack gave me plenty of extras for future projects.

Finally got around to replacing the worn fasteners on my milling vise with these, and the black oxide finish looks much cleaner than the old ones. The hex socket drive made installation a breeze with my allen key, no stripped heads.