HOLO-KROME 87206 براغي رأس مقبس M12-1.75 × 60 مم | رأس مسطح بمحرك سداسي المقبس | فولاذ سبائكي معالجة حرارية بأكسيد أسود (50/عبوة)

Just finished a batch of jigs with these and the black oxide finish is holding up perfectly under the shop lights. The 60mm length seated flush without any binding, and the hex drive grabbed cleanly every time.

Black oxide finish is even and consistent across all fifty, and the socket drive seated perfectly with my hex key. Threads cut clean into the steel plate without any galling, and they’ve held torque after a full week of vibration. Exactly what I needed for a precision assembly.

Installed these in a jig for a milling fixture and the hex drive seated perfectly without stripping. The 60mm length was just right for the clamping depth I needed.