M8-1.25 x 40mm 六角頭螺絲 | 8.8級鋼 素面 | 全牙 (200顆/包)

Noticed right away these hex heads give a nice solid bite with a socket — no stripping. The 40mm length fit perfectly for bolting down a heavy motor mount.

Needed a full set of 40mm bolts for a frame jig I’m building, and the 8.8 grade steel gives me confidence these won’t strip under heavy load. The hex heads fit a standard socket perfectly and the threads are clean all the way down.

The box of 200 arrived well-sealed—each M8 bolt has clean threads that thread into blind holes without binding or cross-threading. I used them to secure motor mounts on a small milling machine, and the class 8.8 steel felt solid under the wrench.