M12-1.75 X 130mm 소켓 캡 나사 | 접시머리 육각 소켓 드라이브 | 부분 나사산 | 10.9급 합금강 열처리 블랙옥사이드 (20개/팩)

The black oxide finish is exactly as pictured—uniform and clean—and the partial threading on these grabs just right for my fixture builds. Class 10.9 strength gives me confidence these won’t shear under load, and all twenty arrived with crisp hex sockets that seated my driver without any play.

Had to replace some worn bolts on a jig and these fit perfectly with no play. The hex socket drive made installation smooth even in tight spaces, and the black oxide finish looks solid.

The 130mm length and partial threading gave me exactly the grip I needed for a jig assembly, and the black oxide finish looks sharp against the steel. Threads cut cleanly with no galling, and the hex drive seated firmly without stripping.