The 08R08 version is the replacement part for the 08R14. Our engineers are currently going thru a process of removing certain SKUs from our system. The 08 unit is 1/2" in length and the 14 unit is 7/8" in length. We have determined that the 08 version can be used in lieu of the 14. This is the only difference between the 2 units.
In summary, the screw is a different length, but will work in all applications where the 08 length was specified.