براغي رأس كبس بمقبس 1/2-13 × 3/4 بوصة | محرك مقبس سداسي | ملولبة بالكامل | برونز سيليكوني (50 / عبوة)

Installed these in a marine-grade jig I’m building, and the silicon bronze is noticeably denser than standard steel—definitely won’t corrode. The hex socket drive seated cleanly without any stripping, even at full torque.

Finally, a bronze bolt that doesn’t fight back on the bench—the silicon bronze threads are buttery smooth, and the hex socket drive held up perfectly when I torqued them into a new jig. These 1/2-13 x 3/4" caps feel solid enough for daily machine work, and the 50-pack means I won’t be running out mi

The hex socket drive makes torquing these down a breeze, and the silicon bronze threads cut cleanly without any galling. Used a full pack on a production fixture setup and every single one seated flush.