براغي رأس مقبس سداسي HOLO-KROME 77388 مقاس #10-32 × 1/4 بوصة | محرك مقبس سداسي | فولاذ سبائكي مؤكسد أسود حراري (100 / عبوة)

The black oxide finish on these #10-32 screws looks professional and resists wear well during assembly. I used a dozen to secure a jig fixture, and the hex socket seated perfectly without stripping. Exactly what I needed for precise tooling work.

These #10-32 screws threaded smoothly into the jig I'm building without any binding. The hex socket drive held the Allen key perfectly, making assembly quick. Exactly the right size for my precision fixtures.

The black oxide finish gives these a clean, uniform look, and the hex socket drive made quick work of swapping out worn bolts on a precision assembly. For the price per piece, the alloy steel feels solid enough for shop use, though the 1/4" length is definitely a niche fit.