HOLO-KROME 60068 براغي ذات رأس مقبس | رأس مسطح مقبس سداسي | فولاذ سبيكة أكسيد أسود حراري (100 / عبوة)

Used them to build a custom jig for my drill press and the 1-4-20 threads were clean and consistent on every single screw. The flat heads sat perfectly flush without any wobble, which saved me a ton of time.

The thermal black oxide finish on these screws gives them a clean, professional look and seems like it'll resist corrosion well. They seated perfectly flush in my jig fixture, and the hex drive held up without stripping.

I used these on a precision assembly jig I'm building, and the black oxide finish makes them look great while resisting rust. The flat hex head sits perfectly flush in my counterbored holes, just what I needed.