M3 X 5mm مسامير رأس أسطواني | رأس مسطح محرك سداسي | فولاذ سبائكي (200 / عبوة)

The hex socket drive grabs the allen key firmly with no stripping even after repeated tightening in my precision assemblies. Alloy steel feels solid, and all 200 pieces arrived with consistent threading. Exactly what I needed for the tooling build.

The flat head sits flush in my jig, and all 200 screws threaded cleanly without a single stripped socket. Alloy steel feels plenty rigid for the precision assemblies I’m working on, and the M3 x 5mm size was exactly what my setup needed.

Finally found a replacement pack for my custom jig setup, and these alloy steel screws are noticeably tougher than the cheap zinc ones I tried before. The hex socket drive grips the driver bit firmly with no stripping, which is exactly what I needed for repeated adjustments on my milling fixture.