This replacement latchbolt may help save your precious L-77A lock. Bargman L-77 locks were used on vintage trailers in the late 1950s and early 1960s. They are recognizable by a tall orientation, rather than a square or more landscape horizontal profile.
This bolt looks something like the latch bolt used on Bargman L-100, Bargman L-200 and Chesler T-5 locks but it does not fit those locks. It only fits Bargman L-77A locks.
Latch Bolt dimensions are:
Milled from aircraft grade aluminum billet. Then carefully finished to leave a smooth, attractive finish.
No instructions are included but it is a fairly straightforward project. Pease take your new bolt and your lock to a locksmith if you are not confident you can install it yourself. We offer several other parts for this lockset, including exterior handles, handle springs and pivot pins, and a new cylinder with keys.