Honestly it is only meant to hold a hub in place. I guess nuts and bolts could be used but i have never seen that... usually C Clips are used arent they.
I dont mind if it was a little long by a couple of mm as i could use shims to fill it out???
Nice idea.. .but they are a little long at 60mm... but could be cut down i guess... but maybe someone can chime in that has similar length pins on their truck/truggy...
The shorter cen gst 3mm pin work great. It is the upper arm inner pin, holds the upper arm to the shocktower/bulkhead. I will find you a P/n. I had limited success finding the part you listed, but some UK shops did have it a few weeks ago. Google it.