HOLO-KROME 09021 Parafusos de ombro com sextavado interior 10 mm x 30 mm | Cabeça cilíndrica | Acionamento sextavado | Aço ligado óxido negro térmico

The precision-ground shoulder is spot on for a pivot application I'm working on, and the black oxide finish looks and feels solid out of the box. Fit in the bore was snug without any binding, just how I wanted it.

Finally found these at the exact dimensions I needed for a heavy-duty indexing fixture—the precision-ground shoulder fits the bearing bore perfectly. They’re pricey for a pack of 25, but the black oxide finish looks clean and they’ve held up through a week of 8-hour shifts without a hitch.

The precision ground shoulder makes these work beautifully as a pivot pin—no wobble or slop once torqued down. The black oxide finish looks sharp and hasn't chipped during assembly. I've already ordered another pack for the next project.