I would have put SAE or AN bolts in if I could have but the trim actuator housing is threaded to receive the bolts. 10x1.0 is the more common metric fine, 10x1.5 is the regular coarse. 10x1.25 is not so common but a common Japanese automotive size (mostly seatbelt mount bolts from what I saw in my hardware bins). I will order the bolts tomorrow from Parker at $11 a piece which makes me barf in my mouth a little but then at least it's the correct hardware ready to install next time the boat is out. And it's correct head size 14mm but that's the OCD in me. Japanese hardware is 8, 10, 12, 14, 17mm heads. Toss all the other sockets in the bin.