air cylinder brackets

[giandtb@mb.sympatico.ca]

on the front door stabalizer cylinders is there a preferred pop rivet
length or grip range for the 4 - 3/16" metal pop rivets that secure the
brackets to the frame ?

does it make a lot of difference where i put the 4 pop rivets as there
are no holes in these 2 brackets ?

could i use 7/32" dia. or 10 - 24 machine screws instead,with a lock
nut.

                        george iluk