Hello,
It looks like you have an old National door and we've related the available parts that we carry for your door. Your bottom door images are guide pins. The 21-026B pins consist of a 1/4" plain pin with the 21-113 nylon cap, the 21-252 spring, the 1/4" diameter 21-150 nylinder to help the pin slide through the door openings, and a lock on 21-155 push nut.
Image 3584 shows the 21-046 bottom adjusting pivot going into the 21-204 bottom bracket. Again, you might need the 21-151 (5/16") nylinder to help the threaded pin through the door. The top pins are our 21-041, which inserts into the 21-204 pivot bracket. The top pin in image 2 is the 21-026B spring loaded guide pin, with the 21-113 nylon cap, 21-252 spring, and 21-155 push nut.
You might also need the 21-150 (1/4") nylinders again. You don't need to replace all the parts, just the ones that are worn out. Regarding the top pins in image Top Pin3, the spring-loaded pins should have a 21-113 nylon cap, not the 21-204 pivot bracket. Review the specifications and see what you think.