براغي رأس مقبس M6-1 × 30 مم | محرك سداسي برأس زر | ملولبة بالكامل | فولاذ سبائكي من الفئة 12.9 مطلي بالزنك (300 / عبوة)

Installed these on a custom fixture and the hex socket drive made tightening quick without stripping. The zinc plating held up perfectly during assembly.

I’ve been using these for a few jigs and fixture builds, and the zinc plating has held up nicely without any rust even in my damp garage. The 12.9 alloy steel feels seriously tough for the price, and threading them into tapped holes was smooth every time. Definitely stocked up for future projects.

Installed a full set of these on a jig this afternoon and every single one threaded smoothly without binding. The zinc plating looks clean and even across all 300 pieces, which is exactly what I needed for precision tooling work.