M5-0.8 x 16mm 六角頭螺絲 | 10.9級碳鋼 無鍍層 | 全牙 (5400顆/包)

These are spot-on for tightening down brackets on a conveyor line; the hex head gives a solid bite with a socket. Packed tight in the box with no missing pieces, and the 10.9 steel feels sturdy. Exactly what I needed for heavy-duty assembly.

Our maintenance crew goes through a lot of M5 hardware, so buying the full 5400-count box made sense. The class 10.9 steel feels noticeably tougher than the usual grade 8.8 stuff we'd grab locally, and the hex heads seat cleanly with a socket every time.

Finally got these for a production run where we needed consistent torque specs. The Class 10.9 rating gives me confidence they won't strip, and the fully threaded length is exactly right for our jig assembly.