M12-1.75 X 55mm 內六角螺絲 | 六角驅動 | 部分螺紋 | 8.8級合金鋼鍍鋅 (100個/包)

Used these for a tooling fixture and the partially threaded design made alignment much easier. The hex socket drive took torque well without stripping, and the zinc plating seems durable. Exactly what I needed for this build.

The partially threaded design on these M12 screws made aligning them in my jig much easier than fully threaded bolts. They seated firmly with a hex key and the zinc plating looks clean. Exactly what I needed for a machinery repair.

The hex socket drive grabbed perfectly on my wrench without any stripping, and the zinc plating gives them a clean look for jig building. I needed the partially threaded length for a tight assembly, and these were spot on.