M12-1.75 × 25mm براغي رأس مقبس | محرك سداسي المقبس | ملولب بالكامل | فئة 12.9 سبيكة فولاذ مطلي بالزنك (50 / عبوة)

Used a batch to rebuild the clamping fixture on my mill, and all fifty seated true without a single stripped thread. The zinc plating is holding up well against the cutting oil spray, and the 12.9 alloy steel feels plenty rigid for the torque I put on them.

The hex socket drive on these screws makes tightening them a breeze, and the zinc plating looks clean and durable. Perfect for my machine tool jig repairs.

I used these to secure a custom jig for a milling machine, and the 12.9 alloy steel held up perfectly under heavy clamping force. The zinc plating looks good and seems resistant to shop grime, though the threads could be a bit smoother for hand-starting.