براغي مقبس نقطة كأس مخدد 5/16-24 × 1/4 بوصة | سبيكة فولاذ مطلية بالزنك الأصفر (100/عبوة)

Needed a strong set screw for a motor shaft repair, and these knurled cup points really bite into metal without slipping. Zinc plating looks clean and should hold up fine in my shop environment.

Used these to secure a pulley on a small motor shaft, and the hex socket made installation in that cramped space a breeze. The alloy steel feels tough, and the zinc plating looks clean.

Knurled cup point really grips the shaft without marring it, which is exactly what I needed for a locking collar setup. The zinc finish looks clean and the hex socket gives a solid bite even in an awkward angle under the machine.