M12-1.25 x 180mm 六角頭螺絲 | 10.9級鋼 素面 | 部分螺紋 (100 / 包)

The threads cut clean and seated perfectly into my fixture plates—no binding or galling during installation. For 180mm of hardened steel at this price point, the class 10.9 rating gives me real confidence on the milling machine.

Installed these on a custom jig I was building and the partial thread left just enough grip for the locking nut. The 10.9 steel feels seriously tough, no bending even under high torque.

I needed partially threaded screws for a jig I was building and these M12-1.25s fit perfectly with the hex head making them easy to torque down. The 180mm length was just right for my application, and the 10.9 steel feels solid.