6mm X 45mm 內六角螺絲

Fit perfectly into my aluminum frame's threaded insert—the 45mm length was spot-on for the bracket I was mounting. Threads were clean and engaged smoothly without any binding.

Had to track down a specific metric bolt for an old mounting bracket, and these 6mm x 45mm screws were an exact match. The threads are clean and the hex key fits snugly without stripping out.

These 6x45mm socket head cap screws fit my system's mounting bracket perfectly, and the hex drive seated firmly without stripping even under a wrench. I ordered just the one I needed, and it arrived quickly, which saved me from buying a whole hardware kit.