M10-1 X 40mm 六角頭螺絲 | 8.8級鋼 原色 | 部分螺紋 (100個/包)

Needed exactly 100 of these for a machine rebuild and the partial threading made alignment a breeze. They fit standard M10 nuts perfectly and the hex heads held up well under my torque wrench. Glad I bought this pack instead of running to the hardware store mid-job.

Went through a full pack assembling a workbench frame, and every single one seated cleanly with a socket wrench without stripping. The hex heads give great grip, and the 40mm length with partial threads held snug through two steel plates.

The partially threaded design made them perfect for clamping two steel plates without bottoming out. Class 8.8 rating gives me confidence they'll hold up under real torque, and the hex heads seated cleanly with my socket set.