براغي رأس سداسي M30-3.5 X 170mm | فولاذ فئة 8.8 عادي | ملولب جزئيًا (2/عبوة)

Wrenched these into a press frame yesterday—the partial threading caught perfectly through the thick plate without binding. Solid Class 8.8 steel, no question these will hold up under heavy load.

Needed these for a heavy equipment jig assembly, and the partially threaded design let me cinch down a thick bracket without fighting full-length threads. The Class 8.8 steel felt solid under torque, no stripping or galling.

Threads were clean and the hex head seated perfectly in my 3/4" socket without any wobble. The partial threading gave me just enough grip for the flange I was bolting down, and the class 8.8 steel feels solid for the price.