HOLO-KROME 76020 M3-0.5 x 12mm 소켓 캡 나사 | 육각 소켓 드라이브 | 합금강 열처리 블랙 옥사이드 (100 / 팩)

I needed a small batch for a jig I was building, and these socket cap screws fit perfectly into tight spots with the hex drive. The 12mm length was just right for my assembly, and the black oxide finish gives them a nice, consistent look without any glare.

The black oxide coating on these M3 screws really holds up well during assembly, no galling or stripped hex sockets after tightening several in a jig. They seat perfectly flush on the workpiece every time, which is exactly what I needed for a precision fixture.

First batch came out of the bag and the black oxide finish looks consistent, no flaking. The hex drive seated cleanly in my driver and these M3s held firm on a jig I’m building. Definitely planning to order again once I run through the 100.