براغي ذات رأس مقبس M22-2.5 × 150 مم | محرك مقبس سداسي | خيط جزئي | فئة 12.9 فولاذ سبائكي مطلي بالزنك (10 / عبوة)

Installed these on a custom jig I’m building and the partial threading made alignment much easier than fully threaded screws. The hex drive torqued down smoothly without any cam-out.

The zinc plating is holding up great in our shop environment, no rust after a week of daily use on the jig assembly. For the price of a ten-pack, getting Class 12.9 strength at this size is a solid deal. Threads were clean right out of the bag, too.

The hex socket drive seated perfectly on my Allen key, and the zinc plating looks clean and uniform across all ten screws. Threads were sharp and engaged smoothly into my tooling plate without any binding. These feel properly hardened for the price.