M6-1 x 25mm 內六角螺絲 | 內六角驅動 | 全螺紋 | 8.8級合金鋼鍍鋅 (400 / 包)

Used a whole pack for a custom jig build, and every single screw seated perfectly without any stripping. The zinc coating looks uniformly done, and the threading was clean enough to start by hand. Exactly the consistent quality I needed for precision tooling.

The hex socket drive seated perfectly on my Allen key, and every one of the 400 pieces threaded cleanly into my jig without a single stripped head. Zinc plating looks uniform across the batch, which matters when you're staring at them all day on a production line.

Used a full package assembling a new tooling fixture and every screw seated perfectly without any cam-out issues. The zinc plating is even and consistent, which should help with rust resistance in the shop.