自攻螺絲 M4.2x9.5 圓頭十字

The M4.2 threads bit into the metal perfectly without stripping, and the round head sits flush against the surface. I’ve already used a dozen of these on my jig, and every one held tight after driving it in.

The Phillips drive fits my driver bit snugly, so these M4.2x9.5 screws seat cleanly without stripping. I used them to fasten a bracket on my bench jig and they held firm through a few test runs.

Exactly the right size for attaching small brackets to my workbench—they bite into the metal cleanly without stripping. The round head sits flush against the surface, which is exactly what I needed.