HOLO-KROME 08022 براغي كتف بمقبس 5/16" × 3/4" | رأس مقبس | محرك مقبس | سبائك فولاذية مؤكسدة حرارياً باللون الأسود (25/عبوة)

The precision-ground shoulder on these screws made them fit perfectly as a bearing surface in my jig assembly, with no wobble at all. The black oxide finish looks clean and seems durable enough for repeated use.

Used these as pivot pins for a small indexing fixture I built, and the ground shoulder fits the mating bore perfectly without any slop. The black oxide finish held up well during assembly and testing.

Had to order these for a custom jig I’m building, and the precision ground shoulder fits the bearing bore perfectly. They drive in smoothly with a hex key and the black oxide finish seems durable.