These jalousie window hinges are approximately 4.5" overall length and have a stud that inserts in the long moving bar on the window.
Price is for a set of two (left and right) hinges.
This is the proper pivot bracket for Hehr 2601 windows. (Hehr 010-182)
Used on some Boler and Avion trailers. We've heard it works on a 1967 Travelmaster, too. Let us know if you have a trailer these fit.