براغي رأس أسطوانية M10-1.5 × 40 مم | محرك سداسي منخفض الرأس | خيط جزئي | فئة 10.9 سبائك فولاذية مؤكسدة حرارياً بالأسود (100 / عبوة)

The black oxide finish has that nice matte look and the partially threaded design gave me just the right grip for my jig build. All 100 seated cleanly into the tapped holes without any binding, which is usually my biggest headache with cap screws.

Installed these on a CNC fixture and the hex drive seated perfectly without stripping. The black oxide finish seems durable and the 40mm length was exactly what I needed for clamping a 20mm plate.

The partially threaded length on these M10-1.5s is perfect for my tooling fixtures, and the black oxide finish has held up without any rust after a week of cutting fluid exposure. Class 10.9 strength gives me total confidence in these precision assemblies.