براغي رأس أسطوانية M5-0.8 × 70 مم | محرك سداسي | ملولبة جزئيًا | فولاذ سبائكي كلاس 12.9 مطلي بالزنك (200/عبوة)

Finally, a bolt that actually threads cleanly without binding halfway down—the partial threading on these 70mm screws is perfect for my machine tool builds. The zinc plating has a nice even look and feels solid, not flaky.

Bought these for a jig I’m building, and the 12.9 alloy steel feels seriously tough—way stronger than the standard stuff I’ve used before. The zinc plating looks clean and should hold up fine in my shop.

The hex socket drive bites cleanly without stripping, and the zinc plating looks uniform across all 200 pieces. Threads run smooth right out of the bag, which saved me time on a jig build this weekend. Class 12.9 strength gives me confidence these won't shear under load.