براغي تثبيت بمقبس سداسي بنقطة كوب 5/8-18 × 7/8" | فولاذ سبائكي (50 / عبوة)

Needed a set screw that wouldn't strip under heavy tightening, and these alloy steel ones with the hex socket drive handled it perfectly. The cup point really bites into the shaft, no slipping at all.

Grabbed a pack for a machine adjustment that needed a high-torque fix in a cramped spot, and the hex socket drive let me get a solid bite without any slip. The cup point tip seated firmly and held through a full shift of vibration.

I needed a secure lock for a sprocket on a shaft, and these set screws with the hex socket drive let me torque them down properly in a tight spot. The alloy steel feels sturdy, and the 50-pack gives great value for industrial use.