It is common knowledge that the roll pins can shear in the arm .
It has been suggested that split pins be inserted inside the roll pin to hopefully assist in stopping the roll pin from shearing .
This has been put into practice by a few folk and appears to work well enough .
While looking for something else I chanced upon the website
and found the recommendation as follows ;
It is possible to increase the shear strength of slotted pins by inserting a small diameter inside a large one.
This should always be done by inserting the larger pin first, then inserting the smaller one, taking care that the slot is between 90 degrees and 180 degrees away from the slot in the larger pin.
After receiving the info from wheaters that the Reliant supplied roll pins are
Diameter ; 5/32 inch
Length ; 1 inch
I now know the other size of roll pin to buy
Diameter ; 3/32 inch
Length ; 1 inch .
Following list gives the other sizes , if required , for other jobs / vehicles ;
IMPERIAL
OUTER PIN ; .... INNER PIN ;
5/32 ................... 3/32
7/32.................... 1/8
1/4...................... 5/32
5/16.................... 3/16
3/8...................... 7/32
1/2...................... 5/16
.
Following Metric list gives the other sizes , if required , for other jobs / vehicles ;
METRIC
OUTER PIN ........... INNER PIN
3.5 mm .................. 2 mm
5 mm ..................... 3 mm
6 mm ..................... 3.5 mm
8 mm ..................... 5 mm
10 mm ................... 6 mm
12 mm ................... 7 mm
14 mm ................... 8 mm
16 mm ................... 10 mm
20 mm ................... 12 mm
.
.