براغي ذات رأس أسطواني M16-2 × 40 مم | محرك سداسي | ملولبة بالكامل | فئة 12.9 سبائك فولاذ أكسيد أسود حراري (50/عبوة)

Need a high-strength bolt for a jig I was building, and these M16s fit the bill perfectly. The hex socket drive made installation a breeze even in tight spaces, and the 12.9 grade feels rock solid.

The black oxide finish on these bolts looks professional and seems to add a nice layer of corrosion resistance right out of the pack. They threaded into my jig perfectly without any resistance, and the hex socket drive made installation with a standard Allen key quick and easy.

I needed some tough fasteners for a custom jig build, and these M16-2 x 40mm socket cap screws threaded smoothly with no binding. The thermal black oxide finish looks clean and should hold up well against oil in the shop.