HOLO-KROME 86005 M3-0.5 X 12mm 소켓 캡 나사 | 버튼 헤드 육각 소켓 드라이브 | 합금강 열 블랙 옥사이드 (100개/팩)

Used a handful of these to fix a jig that keeps getting knocked around, and the socket drive bites better than the hex head stuff I had before. The thermal black oxide hasn't chipped or faded after a week of assembly and disassembly, which surprised me for the price. Definitely my go-to for M3 faste

The hex drive on these M3 screws fits perfectly with my hex keys, making assembly on my 3D printer jig much easier. The 12mm length was exactly what I needed for securing the aluminum brackets. Nice consistent threading throughout the whole package.

The black oxide finish on these M3 screws gives them a professional look, and the hex socket drive made installation much easier than dealing with slotted heads. I used them for a small jig project, and the 12mm length was perfect for the assembly. A solid pack of hardware for any precision work.