براغي رأس سداسي M12-1.5 × 40 مم | فولاذ فئة 10.9 زنك أصفر | ملولبة بالكامل (50 / عبوة)

I needed a batch of M12 bolts for a heavy equipment frame repair, and these 40mm ones threaded in perfectly with a socket. The hex heads grab firmly without any stripping, and the yellow zinc coating looks exactly like what I expected for industrial use.

The yellow zinc finish on these is exactly what I needed for outdoor equipment assembly—no corrosion worries after a few weeks of rain. The 10.9 grade steel feels rock solid when torqued down with a socket, and all 50 threads were clean, no burrs or defects.

Put these on a heavy-duty press frame and the 10.9 grade holds torque better than standard hardware. The yellow zinc finish is a nice touch for a bit of corrosion resistance, too.