براغي رأس سداسي ثقيلة 3/4-10 × 5 بوصات | ASTM A193 B7 سبيكة فولاذية عادية | ملولبة جزئيًا (50 / عبوة)

Installed these on a press brake and the threading was clean all the way down—no galling. The 5-inch length was exactly what I needed for a heavy flange connection, and the partial thread gave plenty of grip.

Finally found a hex bolt that doesn't strip when torquing down a pump base, and these 5-inch long ones give just the right grip for thick steel flanges. The partially threaded shank makes alignment so much easier than fully threaded alternatives I've tried.

Installed these for a flange joint on a pressure vessel and they torqued up nicely with no galling. The 5-inch length was spot-on for my assembly—class 8.2 strength held perfectly.