HOLO-KROME 0800994 5/8" × 3/4" براغي كتف رأس أسطوانية | رأس أسطواني | محرك سداسي | فولاذ سبائك معالجة حرارياً بأكسيد أسود (25/عبوة)

The precision ground shoulder on these screws is exactly what I needed for a smooth bearing surface on my jig. They fit perfectly into the assembly with no wobble, and the black oxide finish looks great. Great quality for the price.

The hex socket drive made installation straightforward with standard tools, and the precision ground shoulder fit perfectly as a pivot point on my jig fixture. These feel much more robust than the generic shoulder screws I've used before.

Finally found replacement shoulder screws for a custom jig build and these fit the precision ground shoulder perfectly. The black oxide finish on the alloy steel gives them a nice, durable look that should resist any shop grime.