Parafusos de cabeça sextavada 7/16-20 x 5" | Aço grau 5 zinco amarelo | Roscado parcialmente (25/embalagem)

The partial threading made alignment much easier when bolting a heavy steel jig to my workbench, and the hex head took a socket perfectly. These feel solid—no wobble or stripped threads during tightening. Exactly what I needed for industrial-grade equipment assembly.

Installed these on a press brake at the shop and the partial threading made alignment much easier than fully threaded bolts. Yellow zinc finish seems durable and the hex head seated well with a socket.

Wrench slipped right onto the hex head with no rounding, and the zinc finish looks clean enough to leave exposed on my press setup. Threads cut smooth through the coupling, though I wish they’d bagged them with a bit more padding—one had a scuff mark out of the box. Still, all 25 seated tight and he