براغي رأس سداسية M18-2.5 × 150 مم | فئة 10.9 فولاذ مطلي بالزنك | خيط جزئي (50 / عبوة)

Partially threaded is exactly what I needed for clamping two thick flanges together, and the 10.9 grade gives me confidence they won't stretch under load. Zinc plating looks clean and even across all fifty pieces, no stripped threads in the batch.

The hex heads held up perfectly under full torque from my 1-inch impact wrench. The zinc coating on all 50 screws looked consistent and gave them a clean, professional finish.

The partially threaded design made installation on my equipment frame much faster since the threads didn't bind in the unthreaded section. These 10.9 steel screws feel solid, and the hex head took a socket wrench without any slippage.