براغي مقبس مخروطية 1/2-13 × 2" | فولاذ سبائكي (50/عبوة)

The cone point seated perfectly into the shaft divot and these alloy steel screws took a lot of torque without stripping the hex drive. The 2-inch length gave me just enough thread engagement for a solid hold on the pulley.

These set screws tightened down firmly with just a few turns of my hex key, and that cone point really bit into the shaft without slipping. The alloy steel feels tough enough for repeated adjustments. Exactly what I needed for a stubborn machinery alignment.

Cone point gripped the workpiece way better than my old cup points, and the hex socket let me torque them down in a spot where I barely had room to swing a wrench. All 50 came clean, threads looked sharp, and the alloy steel feels solid for the price.