Try GRT

My Grand Rapids servo’s use a brass screw and since they sent me to trutrak for my install drawings, I’m betting it’s the same servo screw !
 
My Grand Rapids servo’s use a brass screw and since they sent me to trutrak for my install drawings, I’m betting it’s the same servo screw !

Yes, try GRT. Not sure if the part is interchangeable, but I just bought three of these from them.