M8-1.25 X 150mm 內六角螺絲 | 平頭內六角驅動 | 部分螺紋 | 10.9級合金鋼 鍍鋅 (100入/包)

These screws fit perfectly into my jig fixtures, and the zinc coating looks clean and durable. The 150mm length was exactly what I needed for thicker metal plates without any wobble.

The hex socket drive on these is cut cleanly, so my Allen key seated fully without any wobble, and the zinc plating looks even across all 100 pieces. Partially threaded design gave me the grip I needed for a couple of precision fixture plates.

Used these to mount a heavy-duty jig to a workbench and the partial threading made alignment much easier. The hex drive seated perfectly without any cam-out, even with a torque wrench.