براغي رأس سداسية مقعرة بنقطة مخروطية 1/4-28 × 1-1/2 بوصة | فولاذ سبائكي (100 / عبوة)

The cone point on these set screws bites into metal really well, and the hex drive lets me tighten them securely even in awkward spots. I used them to lock down a collar on a pneumatic cylinder and they haven't budged at all.

Exactly the right size for securing a pulley on a shaft—the cone point bites in perfectly. The alloy steel feels tough, and the hex socket made installation a breeze even in a tight spot.

The hex drive on these set screws made tightening them down in a tight spot really straightforward. I used a full package for a jig build, and every single one seated cleanly without stripping.