براغي رأس سداسية مقاس 1-3/4-5 × 7 بوصة | سبيكة فولاذية درجة BD غير مطلي | ملولبة جزئيًا (6 / عبوة)

Had to torque these to spec on a press frame, and the hex head didn't strip at all — solid bite with a socket. The alloy steel feels tougher than the grade 5 stuff I've used before.

Used a set of these on a heavy-duty conveyor roller replacement — the hex head took a full 500 ft-lbs without any rounding or stripping. The partially threaded shank let them grip tight without bottoming out, which made alignment way easier.

Got these for a press repair at the shop, and the hex head sat flush in the socket without any wobble. The Grade BD alloy steel feels solid, definitely not bending under load.