براغي رأس مقبس M6-1 X 145mm | محرك سداسي | ملولبة جزئياً | فئة 12.9 سبائك فولاذية مطلية بالزنك (50/عبوة)

The 145mm length was exactly what I needed for that deep jig assembly. The hex socket drive gripped the Allen key firmly without stripping, and the partially threaded design made alignment much easier.

The zinc plating is holding up perfectly after a week of clamping steel fixtures in my shop, and the 12.9 alloy steel feels rock solid. Threads cut smoothly into tapped holes with zero binding, even on the longer 145mm reach. Exactly what I hoped for at this price point.

The partially threaded shank on these M6-1 screws made them perfect for aligning a new jig fixture, and the zinc plating seems very consistent across all 50 pieces.