M10-1.25 X 55mm 소켓 캡 나사 | 육각 소켓 드라이브 | 부분 나사산 | 클래스 12.9 합금강 아연 도금 (50개/팩)

Had to order these twice because my first batch walked off the job site - they're that good for jig building. The 12.9 alloy steel takes a beating without stripping, and the 55mm length gives plenty of grip with the partial thread. I've torqued them hard and not a single one has let me down yet.

The zinc plating is flawless across all fifty screws, and the hex socket drive seated perfectly with my Allen key on the first try. These 12.9-grade bolts feel seriously rigid for my jig setup, no wobble at all.

I needed some strong bolts for a custom jig build, and these M10x1.25 screws threaded cleanly into tapped holes without binding. The partial threading gave the perfect grip depth for a firm hold.