براغي رأس سداسي ثقيل 1"-8 × 9" | ASTM A193 B7 فولاذ سبائكي عادي | ملولبة جزئياً (17 / عبوة)

Installed these on a heavy press and the B7 alloy handled the torque without any issue. The partially threaded design made alignment much easier than fully threaded bolts I've used before.

The threads on these 1"-8 x 9" B7s cut clean and the partial threading gives you that extra grip where you need it. I've got them holding a jig frame and they torqued down without any galling, which I appreciate. Solid buy for heavy equipment work.

Installing these on a large press assembly, the threads cut clean and the hex head gave my wrench solid bite without slipping. The 9-inch length was exactly what we needed for this heavy load-bearing connection.