I have purchased a Coho XC trailer to use with my 2021 Orbea Avant H-60 (disc brake) bike.
I ordered a Burley Thru-Axle after following the Burley axle guide, but on attempting to install it (without applying excessive force) stripped the threads of the axle (luckily no damage to the rear derailleur hanger).
Left is the Burley Thru-Axle, right is the stock Orbea axle.
It was at this point I realised the issue: the Orbea axle is double-lead (Mavic Speed Release?) but the Burley axle is single-lead.
It does not appear that anyone manufactures a Mavic Speed Release compatible Burley Coho axle. I am not able to return either the Coho XC nor the Burley Thru-Axle. I see the following options and would love advice with respect to them as well as any additional options.
Sand/drill the derailleur hanger thread smooth, meaning the only thing keeping the axle on the bike would be drive-side bolt (would thread lock help here?).
Use a helicoil thread repair kit (like this?) on the rear derailleur to drill out and insert a new thread. So far this seems like my best option.
Find/manufacture a rear derailleur hanger with a M12x1.0 thread. Nothing seems available so far.