براغي ذات رأس سداسي M4-0.7 X 40mm | فئة 8.8 ستيل مطلي بالزنك | ملولبة جزئيًا (400 عبوة)

The partially threaded design made all the difference on my latest assembly project, giving me just the right amount of grip without wasting thread space. These hex heads fit my wrench perfectly and the zinc coating looks clean and durable.

I needed M4 bolts with enough grip length for a custom bracket build, and these 40mm hex heads fit perfectly in a socket wrench. The zinc plating looks clean and the class 8.8 steel feels solid without being brittle.

The partial threading is exactly what I needed for clamping thicker plates without the threads chewing up the bore. All 400 came out of the box with a clean zinc finish and sized perfectly, no binding or burrs.