M8-1.25 x 40mm 內六角螺絲 | 平頭內六角驅動 | 全螺紋 | 10.9級合金鋼 鍍鋅 (200個/包)

Used a handful of these so far in a jig build and the 40mm length was exactly what I needed for that assembly. The hex socket drive engages cleanly with no wobble, which made them quick to install.

The zinc plating is even and the threads are clean on every single one of the 200, which is exactly what I need for precision jigs. They seat flush in the countersink without any wobble, and the 10.9 alloy steel feels solid enough for heavy-duty tooling.

Needed a batch of fasteners for a jig I’m building, and the 10.9 grade alloy steel feels much sturdier than the cheap hardware store stuff. The flat head sits flush without needing to countersink.