براغي رأس مقبس M16-2 × 130 مم | محرك سداسي | ملولبة جزئياً | فولاذ سبائكي فئة 12.9 مطلي بالزنك (25 / عبوة)

Finally got these for a jig I was building and the partial thread design made alignment way easier than expected. The hex socket drive bit snugged right in without any wobble, and the 12.9 hardness gives me confidence they'll hold up under heavy clamping.

These M16-2 x 130mm screws were a perfect fit for my precision assembly setup, and the partially threaded design made alignment much easier. The zinc plating seems durable and the hex socket drive gripped well with my wrench.

Installed these on a jig I'm building and the 12.9 grade alloy steel feels incredibly solid compared to standard bolts. The zinc plating is even and smooth, no rough edges.