M2 X 12mm 杯端內六角止付螺絲 | 合金鋼 (100 顆/包)

Finally got around to replacing the grub screws on my 3D printer's extruder gear — the cup point on these bites into the shaft perfectly, so no more skipping under load. They're tiny M2s but the hex socket drive makes them easy to torque down even with fumbling fingers.

Just installed these in a small robotics project — the hex socket drive made it so easy to tighten them in tight spots without stripping. The cup point tip really digs in and holds firm. Great value for a hundred pack.

For the price, these M2 screws are a solid deal – the cup point tip really helps center the driver bit and prevents stripping. I just wish they came in smaller packaging since 100 pieces is a lot for my hobby work.