Footrest assemblies are vulnerable items, both to damage if the bike goes down and to wear from motorcycle boots continuously moving over the wear prone areas.
The easiest way to make the footrest assembly look good again is simple - replace it with new components and fasteners.
This component and some of listed below may well end up in your shopping cart:
Add as many components as you wish to the same shopping cart, new banking sensor bolts 4357607D01 springs 09443110330944005005 & pillion footrest 4360048E10 for example, and still only pay the same single fixed price shipping cost.
If you are going to carry out engine work try this recommended gasket sealant 08C70K0234M?
This component will probably have other, sometimes unrelated, applications within the Suzuki model range. So always check by the part-number rather than the description.