Just PM me your mailing address and I will send you a new bushing in the mail.
You can use any grade bolt since my sleeve protects the bolt from seeing any bending load. The Grade 8 bolts I provide are socket head and stick out a little farther but I did not know that was an issue on the 2013. I now offer Igus spacers precut to 10 mm length as standard for aftermarket shocks.
2013 Ducati Hypermotard SP, 2011 Husaberg FE570S, 2011 BMW S1000RR, 2010 BMW F800GS
2007 Husqvarna TE610 , 2003 KTM 525 MXC