M14×50mm カップポイント六角穴付き止めねじ | 合金鋼（50本/袋）

The cup point tip seated perfectly flush in my metal frame, and the alloy steel feels tough enough for repeated high-torque adjustments. Packed fifty in a box, I’ve already used a dozen and none stripped on me.

The hex socket drive made torquing these down in a cramped spot way easier than I expected, and the cup point bites firmly into the shaft. All fifty screws in the pack had clean threads right out of the box, so no chasing or filing needed. Solid value for the price.

I needed a thread-locking solution for a heavy-duty adjustment, and these M14 set screws with the hex socket drive held perfectly under high torque without stripping. The alloy steel feels sturdy and precise, exactly what I was hoping for.