M6 X 25mm 杯端內六角止付螺絲 | 合金鋼 (250入/包)

The hex socket drive makes installing these in tight spots much easier than using a standard allen key. Each screw feels solid and the alloy steel seems durable enough for repeated use. A solid buy for anyone needing a reliable fastener set.

That cup point bites into the shaft way better than the flat-tip screws I've used before, so the pulley hasn't budged even under heavy vibration. The hex socket is a lifesaver for getting them snug in that cramped motor mount, and the whole box came with clean threads and no burrs.

I was replacing some worn-out hardware on a cabinet jig, and the cup point tip on these M6 screws gave me a much cleaner finish than the flat-bottom screws I normally use. The 250 count per pack is also generous—I’ll have plenty left over for future projects.