براغي رأس كبس M12-1.75 × 70 مم | محرك سداسي | خيط جزئي | فئة 8.8 من سبائك الصلب مع أكسيد أسود حراري (50 / عبوة)

Just got these for a jig I was building and the partial threading made seating them much easier than fully threaded ones. The black oxide coating feels durable and looks clean against the steel.

Finally, a set of socket cap screws that drive smoothly without stripping. The black oxide coating on these M12s is consistently applied, and the partial threading gave me just the right grip in my fixture assembly.

Used a set to replace worn bolts on a heavy-duty press fixture. The black oxide finish handled the shop oil without any staining, and the hex socket drive made tightening in tight spaces much easier. Grip length could be a bit longer for some applications, but they're solid for the price.