M6-1 x 35mm 內六角螺絲 | 六角驅動 | 部分螺紋 | 8.8級合金鋼鍍鋅 (400個/包)

Installed a batch of these into a new jig for a production run, and the partial thread made alignment much easier than fully threaded bolts. They torqued up smoothly to spec without any stripping or deformation. A solid choice for precision assemblies if you need consistent fasteners by the box.

The hex socket drive sits deep and true, so my Allen key grabs every time without stripping. The zinc plating has held up through a week of test cycles with zero rust, and the partial threads give just enough grip for my jig plates.

I was assembling a new fixture and needed a reliable fastener, these screws threaded in smoothly and held tight without stripping. The hex socket drive made them easy to install with a standard Allen key.