براغي رأس أسطوانية M24-3 × 220 مم | محرك سداسي | ملولبة جزئيًا | فولاذ سبائكي فئة 8.8 معالجة حرارية بأكسيد أسود (5 / عبوة)

Used these for a custom jig build and the black oxide finish held up perfectly against minor abrasions during assembly. The partially threaded design gave me just the right grip depth for my 220mm application.

Installed these on a heavy-duty press fixture and the partial threading gave me just the right grip depth. The black oxide finish looks like it'll hold up well against shop grime.

Used these for a custom jig frame and the 220mm length let me reach through multiple layers without needing an extension. The black oxide finish looks clean and hasn't shown any wear after a few hours of assembly work. For the price you get five solid, heavy-duty screws that feel properly heat-treat