M3-0.5 X 14mm 소켓 캡 나사 | 버튼 헤드 육각 소켓 드라이브 | 풀 스레드 | 12.9급 합금강 아연 도금 (900 / 팩)

I needed a batch of reliable fasteners for assembling jigs, and these M3 screws have consistent threads that seat smoothly without any binding. The zinc plating gives them a clean finish that resists minor shop grime, and the hex drive holds torque well.

Got these for a fixture build and the 12.9 alloy steel is reassuringly tough — no stripped heads even when I torqued them down hard. The zinc coating held up fine against a bit of shop grime and they thread cleanly into M3 holes every time.

The zinc plating looks perfectly uniform across all 900 pieces, and the hex socket drive grips the allen key without any stripping. These 12.9 alloy steel screws have held my jig setup together through repeated adjustments without a single head rounding off. Exactly what I needed for precision work.