HOLO-KROME 720000374 براغي رأس أسطوانية #5-40 × 1-1/2 بوصة | محرك سداسي | فولاذ سبائكي مؤكسد أسود حراري (25 / عبوة)

Threaded both these into my mill fixture and they seated cleanly without any binding. The black oxide finish is consistent across all 25, which is exactly what I needed for a couple of jigs I’m building.

The black oxide coating on these screws is super uniform and looks great on my jig build. They threaded smoothly into tapped holes without any binding.

Just got these for a jig I’m building, and they threaded in clean without any binding—the black oxide finish looks sharp on the tooling. The 1-1/2" length was exactly what I needed, and the hex drive grabbed securely with my Allen key.