براغي ذات رأس مقبس M24-3 × 55 مم | محرك سداسي | خيط كامل | فئة 12.9 من سبائك الصلب مؤكسد أسود حراري (10 / كيس)

Needed a high-strength fastener for a press fixture and these 12.9 grade screws handled the torque without any sign of stripping. The black oxide finish is a nice touch for keeping rust at bay in the shop.

Put these in a heavy-duty jig I'm building, and the hex socket drive makes torquing them down easy without stripping. The black oxide finish handled the shop environment perfectly so far. Exactly what I needed for the assembly.

Put these into a heavy-duty tooling fixture I’m assembling, and the hex socket drive seated perfectly without any stripping. The black oxide finish feels durable and has held up well under clamping pressure, exactly what I needed for this job.