براغي ذات رأس أسطواني بمقبس سداسي M18-2.5 × 70 مم | محرك مقبس سداسي | ملولبة جزئيًا | فئة 12.9 فولاذ سبائكي أكسيد أسود حراري (25 / عبوة)

Used a full bag of these on a custom jig frame and every single one seated cleanly without stripping. The 12.9 grade alloy steel feels noticeably more rigid than the 8.8s I had before, and the black oxide held up fine against my oily hands. Threads were consistent too, which is rare at this price po

Pulled these out for a jig I was building, and the black oxide coating has held up nicely against minor scuffs during assembly. The 70mm length was spot on for my fixture plate.

These M18-2.5 x 70mm socket cap screws fit perfectly in my jig build—the hex socket drive made installation a breeze. The black oxide finish looks clean and professional. Exactly what I needed for precise tooling work.