براغي رأس مقبس M10-1.5 × 90 مم | محرك مقبس سداسي | ملولبة جزئيًا | فئة 8.8 فولاذ سبائكي أكسيد أسود حراري (50/عبوة)

Installed these on a jig frame and the hex socket drive made tightening them in tight spots much easier. The black oxide finish also seems durable enough to resist light scuffs during assembly work.

The partially threaded length is exactly right for my jig builds—the 90mm gives plenty of grip without bottoming out. I've used a dozen already and the hex socket drive hasn't stripped once, even torqued down tight.

The black oxide coating on these M10 screws is super consistent, making them look great on visible tooling. Used a few to replace worn bolts on an assembly jig and the hex drive seated perfectly without any stripping.