We offer a rear bolt kit that replaces all the bolts, nuts and washers you will come across when doing your IRS conversion. All are EU manufactured high quality zinc plated. They include lower shock bolts, swing arm pivot bolts, 8 hub bolts including the difficult to obtain M14 fine threaded bolts. Also you will get new spring plate cover bolts. All washers and nuts required are in the kit. You’re spending a lot of money doing the conversion, don’t ruin it by refitting rusty worn threaded fasteners.