براغي مجموعة مقبس بنقطة كوب 1/2-20 × 2-1/4 بوصة | فولاذ سبائكي (25/عبوة)

I needed set screws that could handle repeated adjustments on a jig, and the hex drive on these lets me torque them down tight without stripping. The cup point grips the shaft firmly, even in tight spots where a wrench won't fit.

These fit perfectly on my press brake adjustment bolts, and the cup points bit into the shaft surface much better than the old flat-tip ones I was using. The alloy steel feels tough and the hex drive held up under some serious torquing without stripping out.

Finally, a set screw that actually bites into the shaft instead of slipping. The cup point on these grabbed tight on my sprocket hub, and the hex drive let me really crank them down in a tight spot.