براغي مجموعة مقبس نقطة كوب محززة M12 × 50 مم | سبيكة فولاذ (50/عبوة)

The knurled cup point grabbed the shaft way better than plain set screws I've used, and the hex socket lets me get full torque even in a cramped spot. Fifty in a pack is plenty for my project, and the alloy steel feels solid for the price.

I needed set screws that wouldn't slip under heavy torque, and the hex socket drive on these makes tightening a breeze even in cramped spots. The alloy steel feels solid and durable.

The knurled cup point grips like crazy once you torque it down with a hex key, and the alloy steel feels solid for the price. Worked perfectly for locking a gear onto a shaft.