Snap Stud - lift-the-dot
The Lift-the-dot snap stud was used on Equinox products prior to 1990. It is screwed into the side rails and the corresponding sockets were attached to the front and rear flaps of the trailer bag and the rain cover. The stud is about 3/8" tall with a pointed top.
Nickel plated brass with a metal screw thread.
The lift -the-dot stud is used with a lift-the-dot socket and washer.