براغي رأس سداسية ثقيلة 1-8 × 9-1/2 بوصة | فولاذ سبائكي ASTM A193 B7 غير مطلي | ملولبة جزئيًا (17 / عبوة)

I needed a heavy-duty fastener for a piece of industrial equipment I’m rebuilding, and these 1"-8 x 9-1/2" screws fit perfectly. The partially threaded shank made alignment much easier, and the B7 alloy feels incredibly solid under torque.

B7 alloy steel at this diameter usually means paying a premium, but these came in at a fair price and the partially threaded section seated cleanly against my flange. Threads were sharp and chased, no galling on the first pass. These are going straight into my permanent stock for heavy equipment rep

The hex heads grabbed my wrench perfectly without any slipping, and the partial threading made alignment in a tight machinery spot much easier. These B7 alloy screws feel incredibly sturdy for heavy-duty assembly work.