براغي رأس أسطوانية سداسية M3-0.5 X 40mm | محرك سداسي | ملولبة بالكامل | فولاذ مقاوم للصدأ 18/8 (600/عبوة)

Just finished assembling a batch of jigs and these M3 x 40mm stainless screws threaded in smoothly with no galling. The hex socket drive bit fit snugly, and they held firm without stripping during test tightening. For 600 pieces this is solid hardware for precision work.

600 screws in one box means I’ll never run out mid-project again, and the 18/8 stainless steel feels solidly machined—no burrs on the threads that I’ve seen. The hex socket drive sits snug with my Allen key, so they’ve been perfect for the jig I’m building.

Finally, a bulk pack of M3-0.5 x 40mm screws that actually cuts down on downtime—the hex drive fits perfectly without stripping, and the 18/8 stainless holds up well in my jig fixtures.