براغي رأس مقبس 1/4-20 × 3" | محرك مقبس سداسي منخفض الرأس | فولاذ سبائكي مؤكسد حراريًا أسود (100 / عبوة)

Installed a dozen of these into a new jig I’m building and they threaded in cleanly with no binding. The black oxide finish feels durable and should resist rust better than plain steel. Great value for a hundred-pack.

These low-profile heads fit perfectly into the counterbored holes on my fixture table, and the black oxide finish feels really durable. The hex drive seated cleanly without stripping, which is a big plus over standard bolts.

Replaced the cheap zinc bolts on my old toolbox with these, and the black oxide finish makes them look like they belong on a proper piece of machinery. The hex socket drive grabs perfectly with a ball-end Allen key, and the threads on all 100 cut clean without any binding. Slightly stiffer than I'd