| Number | Name | Origin | Weight | Material | MT | Function
|
| 1
| circular wedge | latch | -- | Aluminum | stamped | access a wedge to keep latch assembled in place inside door
|
| 2
| pop rivot | latch | -- | brass | molded | holds latch case
|
| 3
| turning shaft | outer doorknob | -- | steel | molded | functions key lock
|
| 4
| screws x 2 | outer doorknob | -- | brass plated | cold heading, thread wooling | locks inner and outer doorknobs in place
|
| 5
| latch plate | latch | -- | brass | stamped | attaches to door jam (on door side)
|
| 6
| strike plate | latch | -- | brass | stamped and bent | attaches to door jam, allows latch to fit in hole
|
| 7
| spring | inner doorknob | -- | harden steel, nickel based alloy | wound, prehardened or hardened during fabrication | guides the lock by creating resistance in a locking shaft and keeping it aligned in a locking or unlocking position
|
