M8-1.25 X 12mm براغي رأس مقبس | رأس مسطح مع محرك سداسي | ملولبة بالكامل | فولاذ سبائكي فئة 10.9 مع أسود حراري (400 / عبوة)

Used a full pack on a precision fixture at work—the black oxide finish held up perfectly against minor oil splashes. For the price, getting 400 class 10.9 screws that cleanly fit a hex key is a solid deal.

Put these on a custom jig I’ve been building, and the flat heads sit perfectly flush in the counterbore. The black oxide finish gives them a nice, consistent look without any sticky residue. At 400 per pack, this is a solid buy for any shop stock.

I was a bit skeptical about the black oxide finish holding up, but after installing a dozen of these into a steel fixture, they thread smoothly and the coating looks like it will resist rust well. The hex socket drive gave me solid torque without stripping, and the full threading really bites into t