براغي رأس أسطوانية M2.5-0.45 X 20mm | محرك سداسي داخلي | خيط كامل | فولاذ سبائكي فئة 12.9 بأكسيد أسود حراري (600 / عبوة)

Picked up a pack for some jig work I’m doing, and the hex socket drive makes tightening these a breeze in tight spots. The black oxide finish also seems pretty durable, no chips after installing a few dozen.

I needed exact M2.5-0.45 screws for a jig I'm building, and these 20mm ones fit perfectly with the hex drive. The 600-count pack means I’ve got plenty left for future projects, and the Class 12.9 alloy steel feels solid.

The black oxide coating on these screws gives just enough grip for precision work without slipping, and the 12.9 alloy steel feels rock-solid when tightening. They fit perfectly into my small jig build, and having all 600 in one pack saves me from reordering mid-project.