براغي رأس سداسي ثقيلة 1 بوصة-8 × 2 بوصة | ASTM A193 B7 سبيكة فولاذ عادي | ملولبة بالكامل (52 / عبوة)

These bolts threaded cleanly into the pump housing flange without any binding, and the hex head gave my 1-1/2" socket a solid bite. Definitely a step up from the common hardware store stuff for heavy assembly work.

Installing these on a conveyor drive, the threads cut clean and seated perfectly without any cross-threading. The 52-count box means I’ve got spares for the next job.

The full threading made lining up the 1"-8 pitch a breeze, and the plain finish on these B7s is exactly what I needed for a clean fit. I grabbed a couple of packs for a heavy equipment rebuild and they torqued down without a single hiccup.