HOLO-KROME 87212 براغي رأس كبسولة M16-2 × 40 مم | رأس مسطحة بمحرك سداسي | فولاذ سبائكي مؤكسد أسود حراريًا (25 / عبوة)

The hex socket drive engages perfectly with my Allen key, and the thermal black oxide finish has a nice uniform look that resists fingerprints. I’ve used about a dozen of them for a tooling fixture and the threading is consistently smooth, no binding at all. Solid fasteners for the price, and the 25

Machining a batch of jigs this week and these M16-2 x 40mm flat heads seated perfectly flush with the drive, no wobble at all. The thermal black oxide finish is even and didn't smudge off on my gloves, which is a nice change from cheaper coated screws. For a 25-pack at this size, the fit tolerance f

The black oxide finish on these screws is exactly what I needed for a jig setup—they slide into countersunk holes without any binding. Cost less than a comparable set from a major hardware brand, and the 25-pack will last me through several projects.