براغي رأس كبس M12-1.75 × 80 مم | محرك سداسي | ملولبة جزئيًا | فئة 8.8 من سبائك الصلب مع أكسيد أسود حراري (50 / عبوة)

I used these to replace the bolts on a milling machine clamp — the hex socket drive made them easy to torque down in tight spots. The black oxide finish looks clean and seems like it’ll resist rust well.

Installed these on a jig I've been building and the class 8.8 alloy steel feels plenty sturdy for the torque I'm applying. The black oxide finish is a nice touch, makes them look clean and professional against the aluminum.

The partial threading on these M12s makes them perfect for clamping down jigs without fighting the threads the whole way, and the black oxide finish is uniform across all 50 pieces. Class 8.8 alloy steel feels solid, no soft spots in the socket drive when torqued down. Exactly what my tooling bench