براغي رأس أسطوانية M4-0.7 × 12 مم | محرك سداسي | ملولبة بالكامل | سبيكة فولاذ درجة 12.9 مطلية بالزنك (600 / عبوة)

Just finished assembling a batch of custom jigs and these M4-0.7 x 12mm screws fit perfectly every time. The Class 12.9 alloy steel feels tough and the zinc plating looks clean—no burrs or poor threads in the whole package.

The hex socket drive on these M4 screws fits my driver perfectly with no stripping issues. They’re solidly built for the price, and the 600-count package easily covered my fixture setup.

Finally a batch of M4 screws where every single one threads cleanly into a tapped hole without binding. The zinc plating looks even and consistent across all 600 pieces, perfect for jig assembly work.