spring pin for couplers

[keitaro]

hi all,

 

wondering if anyone knows if there are spring pins for couplers such as the ones that are found on certain trains that don't have replaceable parts.

 

such as some micro ace models dd51 1805

 

i have drawn a very bad paint diagram.

 

i need these to replace them on dd51 as when i dropped it i lost them and while the couplers still work without the springs they don't spring back to the middle and looks crap.

 

I know microace don't do spares but they are very similar if not the same as you some times see in other models some times from tomix but can't seem to find it on hs