براغي ذات رأس مقبس M4-0.7 X 50mm | محرك سداسي | ملولب جزئياً | فولاذ مقاوم للصدأ 316 (200 / عبوة)

I needed longer fasteners for a jig I was rebuilding, and these 50mm 316 stainless screws fit perfectly without any corrosion worries. The hex socket drive makes them easy to tighten securely in tight spots.

The partial threading on these M4s is exactly what I needed for clamping down a jig plate without bottoming out. All 200 pieces came out of the bag straight and clean, and the hex socket drove in smoothly with no stripped heads.

The 316 stainless finish on these M4s gives me real peace of mind in our humid shop—no rust spotting after a month on the tooling cart. Thread engagement is clean and consistent across all 200 pieces, and the partial threading made alignment in my fixture a breeze.