براغي رأس أسطواني M8-1.25 x 55 مم | محرك سداسي داخلي | ملولب جزئيًا | درجة 8.8 سبيكة فولاذ مؤكسد أسود حراري (200 / عبوة)

Needed a batch of high-strength bolts for a jig rebuild, and these class 8.8 screws fit perfectly in the tapped holes without any binding. The 55mm length works great for clamping thicker steel plates together, and the hex drive seats deeper than cheaper fasteners I’ve used before.

The black oxide finish made a noticeable difference when I was assembling a tooling fixture — they seated smoothly and didn't gall. Every screw in the pack had crisp, uniform threads, which saved time during installation. Exactly what I’d expect for precision jig work.

I needed some strong fasteners for a jig I’m building, and the 55mm length on these M8 screws gives just the right reach for thicker material. The hex drive seated perfectly without stripping, and the partially threaded shank made alignment easy. For the price per pack, this is a solid choice for pr