براغي M3-0.5 X 40mm رأس أسطواني زر | محرك سداسي | ملولبة بالكامل | فولاذ مقاوم للصدأ 18/8 (800 / عبوة)

Switching from cheap Phillips heads to these hex socket cap screws made assembling my jig so much easier. The 40mm length fits perfectly, and the 18/8 stainless steel feels solid and corrosion-resistant.

I needed exactly 40mm length for a camera rig project, and these button heads fit perfectly without any burrs or rough edges. The hex socket drive makes them easy to tighten in tight spaces, and the 18/8 stainless feels solid enough for repeated adjustments.

The hex socket drive on these M3 screws really grips the Allen key securely, making assembly on my 3D printer jigs much smoother. I was surprised by the consistent thread quality across all 800 pieces in the pack, no burs or defects to speak of. Perfect for precision work where you need reliable fas