I put a Swytch kit on a Tern Link D8, followed the directions with the parts they sent, and found out that the axle threads cannot take 40nm on a 5mm deep axle bolt. Swytch replaced the wheel and sent me one (?) proper axle bolt and do not want the stripped one back, so if anyone here can use it I'll send it for whatever shipping costs. I hate to just leave it at the curb for the metal recyclers, but if it comes to that it's better than the landfill.