HOLO-KROME 32170 براغي ضبط مقبس نقطة كوب 3/8-16 × 7/16" | فولاذ سبيكة أكسيد أسود حراري (100/عبوة)

The cup point bites into the shaft exactly as it should, and the black oxide finish doesn't flake off during install. Packed a hundred in one box, so I've got plenty for the next few jobs.

I needed a reliable set screw for a tight gear assembly, and these cup point socket screws held firm without any stripping during installation. The thermal black oxide finish also gave them a nice, durable appearance that matched the shaft perfectly.

The hex drive seated perfectly in my jig without slipping, and the cup point design held the component firmly in place on the shaft. Finish looks uniform across the whole pack.