HOLO-KROME 32282 براغي مقبس نقطة كوب 7/8-9 × 2-1/2 بوصة | فولاذ سبائكي مع أكسيد أسود حراري (10 / عبوة)

The hex socket drive made installation straightforward, and the black oxide finish seems durable enough for repeated adjustments. Only reason it’s not a perfect 5 is the packaging could be sturdier for such heavy fasteners.

The cup point really bites into the shaft without walking, and the thermal black oxide finish looks proper. They're plenty tight out of the package, so just a quick check on torque before install. Only wish they came in a small tray instead of loose in the bag.

The hex socket drive fits my driver bits perfectly, and the thermal black oxide finish looks like it will resist rust well. I docked one star because a couple screws had slightly burred edges, but they still seated fine for my shaft clamping job.