براغي رأس سداسية M12-1.75 × 55 مم | فولاذ كلاس 8.8 مطلي بالزنك | ملولبة بالكامل (100 / عبوة)

Torqued these down on a jig frame this morning and the hex head seated cleanly with a 19mm socket. Threads ran smooth the whole way, and at 55mm fully threaded they gave me just the grip I needed for a double-nut lock setup.

The zinc plating on these M12 bolts is evenly applied with no rough spots, so they thread into tapped holes smoothly without binding. I used them for mounting a heavy steel bracket and the class 8.8 strength handled the torque without any flex. One hundred fasteners for this price is a solid deal fo

I was pleasantly surprised by how well the zinc plating held up during a heavy machinery assembly job. These fully threaded screws made it easy to get a tight fit, even in awkward spots, and they didn’t strip under torque.