Launching a small line of dirtbike parts with my brothers, and we need to purchase some hardware. Specifically, grade 12.9, 10mm x 1.5 thread-pitch, low-profile socket-head bolts, 40 -100mm long. Preferably in 5mm increments. Allen-head bolts would be OK, but Torx would be better. Fastenal has them, but only in 40, 50, 60, 70, 80 & 100mm lengths, and only with allen-heads. Anybody have any good sources for metric hardware?