براغي مقبس M16-2 × 30 مم | محرك مقبس سداسي | ملولبة بالكامل | فئة 8.8 من سبائك الفولاذ مع أكسيد أسود حراري (50 / عبوة)

Threads were perfectly clean, no burrs, and the black oxide finish is uniform across all 50 pieces. I used them for a jig build that needs repeated tightening and they've held up without any stripping. Exactly the right spec for the job.

The black oxide finish wiped clean easily and the hex sockets grabbed my allen key without any slop. I used them to secure a jig plate on my mill and they’ve held rock-solid through a week of heavy cutting. For the price per piece, these are a steal.

These M16 socket cap screws fit perfectly into my fixture jig setup. The hex socket drive made installation smooth, and the black oxide finish looks clean. Exactly what I needed for the job.