براغي رأس سداسي M16-2 X 70mm | فولاذ فئة 10.9 مطلي بالزنك | ملولب جزئيًا (25 / عبوة)

Torqued them down on a jig I’m building and the zinc coating held up without a scratch. The 10.9 grade gives me real confidence these won’t strip under heavy load. Threads were clean right out of the bag, too.

The partial threading is exactly what I needed for bolting down a heavy gearbox—the unthreaded shank sits snug in the bore. All 25 heads came out of the bag clean and the hex drive grabbed perfectly with my 24mm socket, no rounding issues at all.

The zinc plating looks uniform and hasn’t chipped even after I torqued them down with an impact wrench. Partially threaded design made aligning the equipment flange a lot easier, and all 25 came in with clean, consistent threads.