براغي رأس مقبس M24-3 × 70 مم | محرك مقبس سداسي | ملولبة بالكامل | فولاذ سبائكي فئة 12.9 أسود حراري (10 / عبوة)

The black oxide finish is flawless on all ten of mine, and the hex socket drive seated perfectly with my Allen key on the first try. Used them in a precision assembly and they torqued down without a hint of stripping. This is my second order for the shop and the consistency is spot on.

Installed these in a jig for a heavy machining job and the 12.9 grade held up without any stripping. The threads are cut cleanly and the hex socket fit my driver perfectly.

Installed these on a press fixture today and the hex socket drive made tightening them a breeze. The black oxide finish feels durable and the 12.9 grade steel gives me confidence they’ll hold up under heavy loads.