براغي كتف مقبس HOLO-KROME 08148 3/4" × 5-1/2" | رأس مقبس | محرك مقبس | سبيكة فولاذية أكسيد أسود حراري (10 / عبوة)

The precision-ground shoulder on these is spot on—measured 0.7500" across all ten and they slide into my bearing bore without any play. Heat-treated finish looks durable, though I wish the hex socket sat a touch deeper.

These hex socket heads fit my adjustment cams perfectly, and the thermal black oxide finish seems like it'll hold up well against wear. I've used them as axle pins on a small jig, and the smooth shoulder makes everything spin true.

The precision ground shoulder on these screws is exactly what I needed for a small axle on a jig I built—it spins smoothly with zero wobble. They’re solid and the black oxide finish looks clean.