Threads on rear seat mount

[youngjohn]

Does anyone know what the thread is on the rear 'eye bolts' which mount the rear of the seat to the tubes attached to the friction dampers? Thanks.

 

[Marcus Bowden]

3/8" BSF with thinned nuts and a size smaller hexagon.

 

[chankly bore]

And some of them didn't have the smaller hexagon,probably depending on what was in the parts bin at the time!Standard dimensions of thin nut are;.600" hex.,.208" thickness,30 degree chamfer both sides.Smaller hex. is .525",.166 thickness, same chamfer.

 

[Tom Gaynor]

They're 3/8" BSF.