Bolts for Rear passenger mounts

[slingblade52]

I just bought new passenger peg mounts and was wondering if anyone knew what size bolts and what threading i needed to install them?

 

[konarider94]

Rear most bolts are 3/8-16 x 1 and front are 3/8-16 x 1 7/8. You could use 4 of the same length anywhere around 1.5

 

[slingblade52]

Thanks