HOLO-KROME 76228 M8-1.25 X 14mm 소켓 캡 나사 | 로우 헤드 육각 소켓 드라이브 | 합금강 열처리 블랙 옥사이드 (100개/팩)

The black oxide finish is exactly what I needed for a tooling fixture I’ve been putting together—no glare under shop lights and it looks properly industrial. Threads were clean out of the bag, and every one of the 100 seated without a hitch. Solid pick if you’re doing precision work.

The heads are perfectly machined, so the hex driver seats cleanly every time without any wobble. I’ve used about thirty so far for jig frames and not a single stripped socket or burred edge.

The black oxide finish gives these an even, non-reflective look that doesn't chip during tightening. They threaded cleanly into my steel fixture without binding, and the hex socket seated perfectly every time.