HOLO-KROME 08094 براغي كتف مقبس 1/2 × 4 بوصة | رأس مقبس | محرك مقبس | فولاد سبائكي أكسيد أسود حراري (25 / عبوة)

Used one as the axle for a custom roller assembly I'm building. The precision ground shoulder ran perfectly smooth with zero wobble right out of the box.

Got these for a small indexing jig that needs a precise pivot, and the ground shoulder is dead-on consistent across all 25 pieces. The black oxide finish took a quick wipe of oil without any fuss, and the hex drive seated cleanly with no stripped corners.

The thermal black oxide finish looks sharp and held up fine through a few heavy-duty cycles so far. The hex socket drive seated cleanly and these 1/2" x 4" screws gave me a solid pivot with zero wobble. Exactly what I needed for a custom axle setup.