M16-2 X 80mm براغي رأس أسطواني بمقبس سداسي | محرك مقبس سداسي | خيط جزئي | فولاذ سبائكي فئة 8.8 مؤكسد أسود حراريًا (25 / عبوة)

Put these on a heavy press fixture this afternoon, and the Class 8.8 alloy steel held torque perfectly without any stretch. The partial threading made alignment in tapped holes much easier than fully threaded bolts I've used before.

The hex socket drive bit right into my driver without any wobble, and the partial threading gave me just the grip I needed for a tight jig assembly. These feel properly hardened, not like the cheap ones that strip out.

The black oxide finish on these M16-2 x 80mm screws is flawless, and the hex socket drive grips perfectly with a standard Allen key. I used them for a jig assembly and the partial threading seated everything snug without any binding. Fast shipping too, though that's on the seller.