براغي رأس سداسي M6-1 × 90 مم | فئة 10.9 فولاذ مطلي بالزنك | ملولبة جزئيًا (150/عبوة)

The partially threaded design made seating these into an existing tapped hole a breeze, and the 10.9 rating gives me confidence they’ll hold under heavy vibration on my press setup. All 150 came out of the box with clean threads and no burrs.

Zinc plating looks clean and even across all 150 pieces, and the partially threaded design grabbed perfectly when I torqued them into an aluminum fixture. Class 10.9 strength gives me peace of mind on the spindle mount too.

I needed these for a heavy equipment repair and the 10.9 grade steel feels really sturdy when torquing down. The zinc plating seems even and should hold up against rust in my workshop.