براغي مقبس نقطة كوب M4 × 30 مم | فولاذ سبائكي (250 / عبوة)

These set screws have a surprisingly good bite thanks to the cup point tip. I used them to lock a small pulley onto a shaft and they haven't budged. The hex drive made installation easy even in a cramped spot.

These set screws are perfect for securing a small gear onto a motor shaft; the hex socket drive made it easy to tighten them down in a tight spot. The cup point tip really bites into the shaft, so nothing slips. I still have a ton left in the pack for future projects.

I needed a reliable set screw for a tight jig adjustment, and these M4 cup point tips really bite into the metal surface. The hex socket drive let me torque them down securely in a cramped spot without any slipping. Solid 250-pack for the price.