مسامير رأس سوكيت M8-1.25 × 40mm | محرك سوكيت سداسي | ملولبة جزئياً | فولاد سبائكي فئة 12.9 مطلي بالزنك (100 / عبوه)

Went through nearly all 100 on a heavy tooling fixture and not a single stripped head or broken thread. The 12.9 alloy steel feels properly hardened, and the zinc plating has a nice even finish that slides into tapped holes without binding.

Installed these in a custom jig build and the hex socket drive made tightening a breeze—no stripped heads. The partial threading gave just the right grip without bottoming out.

Needed a batch of precision screws for a tooling fixture, and the 40mm length was exactly right for the job. The hex socket drive made installation quick and the zinc plating looks clean and durable.