براغي ذات رأس أسطواني HOLOG-KROME 640000170 #8-32 X 5/16" | محرك سداسي برأس زر | فولاد سبائكي أسود حراري (100 / عبوة)

I’ve used these in a few jig builds and the thermal black oxide finish holds up way better than plain steel, no rust spots after a week of shop use. The hex socket drive grips tight with a standard Allen key, and the 100-count pack means I won’t run out mid-project.

The black oxide finish on these #8-32 screws holds up well in my jig fixtures without any rust after a few weeks of use. The hex socket drive engages perfectly with my Allen key, making installation quick and secure.

I needed some compact button head screws for a jig I was building, and these fit perfectly in tight spots with a standard hex key. They threaded smoothly and the black oxide finish has held up well so far.