1-1/4-7 X 2-3/4" 소켓 캡 나사 | 플랫 헤드 육각 소켓 드라이브 | 합금강 열처리 블랙 옥사이드

Installing these on a jig today and the hex socket drive gave me a solid, no-strip grip even at high torque. The flat head sits perfectly flush in my fixture plate.

The black oxide finish on these flat head screws looks great and held up perfectly during assembly on my milling fixture. Drive engagement with the hex socket is nice and solid, no stripping issues.

These flat head socket cap screws seated perfectly flush in my jig setup, and the black oxide finish looks great. The hex socket drove smoothly without any stripping, which was a relief. Exactly what I needed for a precision assembly project.