M12-1.75 X 20mm 소켓 캡 나사 | 버튼 헤드 육각 드라이브 | 전체 나사산 | 12.9 합금강 아연 도금 (100개/팩)

The hex socket drive on these screws gripped my Allen key perfectly without any slipping, and the zinc plating gives them a clean, even finish. I used a dozen of them to secure a heavy-duty jig frame, and the Class 12.9 alloy steel feels rock solid.

These button heads sit flush and clean on my tooling fixtures, and the hex drive made installation straightforward with no stripping. The 12.9 alloy definitely feels tougher than standard hardware, and the zinc coating looks like it'll hold up well.

I needed some strong fasteners for a jig I was building, and these M12 button heads worked perfectly with their hex socket drive. The 12.9 alloy steel feels seriously rigid, and the zinc plating gives them a clean, uniform finish.