HOLO-KROME 86031 براغي مقبس M6-1 × 16mm | رأس زرية محرك مقبس سداسي | فولاذ سبائكي مؤكسد أسود حراريًا (100 / عبوة)

Threading is clean and consistent right out of the bag, and the black oxide finish looks sharp on my jig table. These seated flush without any fuss, so I’ve already burned through half the pack on a weekend project.

The black oxide finish on these is flawless—no tool marks or uneven spots anywhere. The hex socket drive seated perfectly on my Allen key, and all 100 pieces threaded cleanly into my precision assembly without a single hitch.

I needed some proper fasteners for a jig I was building, and these M6 socket cap screws fit perfectly with no wobble. The hex drive seated cleanly without stripping, and the 16mm length was just right for my assembly.