براغي رأس مقبس M3-0.5 × 4 مم | محرك سداسي | ملولبة بالكامل | فئة 12.9 من سبائك الصلب أكسيد أسود حراري (600/عبوة)

I needed a solid batch of screws for a jig I was building, and these M3×4mm pieces threaded cleanly into every pre-tapped hole without any binding. The black oxide finish gave them a nice, uniform look, too.

The hex socket drive on these M3×4mm screws is clean and precise, so my hex wrench seated perfectly every time without stripping. The black oxide finish also gives them a nice consistent look across all 600 pieces, and they held up fine in my recent jig build.

Finally, a good quantity of M3 black oxide screws that don't strip the hex head. They fit perfectly in my jig's threaded holes and the coating gives a nice, consistent look.