M3 x 16mm 錐點止付螺絲 | 合金鋼 (100個/包)

Used a few of these to lock a small gear onto a shaft and the cone point really bites into the flat without walking. The hex socket drive made torquing them down in a cramped spot way easier than a standard wrench. All 100 came clean with no stripped threads out of the box.

I needed a precise set screw for a small robotics project, and the cone point on these M3s bites perfectly into the shaft without slipping. The alloy steel feels sturdy enough to handle repeated adjustments with my hex key.

The hex socket drive made tightening these M3 screws in a tight corner a breeze, and the alloy steel feels really solid. I’ve already used half the pack for mounting a small bracket, and they haven’t stripped.