I think this is a Fastwin????
Anywho, I am beyond baffled with this one,.
I hold no ill towards whom I bought the part from, that being said.
I purchased a transom clamp screw to replace my broken one along with 2 transom pads.
I ended up replacing the transom bracket as well as someone well before me and the last 3 owners had cut the transom bracket for whatever reason as well as cutting the pads.
So I removed the one good screw and screw it into the replacement bracket, and then attempt to install the new screw and it will not thread, the pitch is different.
Standard 5/8-11 thread is what the replacement was but the original is 5/8-12 ??????????
I confirmed by threading the original screw into all for bracket holes in both brackets and it threads in just fine….
I have triple checked the thread pitch and it is indeed 12 pitch on the original and 11 pitch on the replacement using Starrett thread pitch gages.
So are they originally 5/8-12???
Richard
http://www.richardsoutboardtools.com
classicomctools@gmail.com