DTM/ATM use size 20 contacts
DT/AT use size 16 contacts
DTP/ATP use size 12 contacts

0460-202-20141 is a male pin terminal, 20-2awg, size 20, nickel plated
0460-202-2031 is a male pin terminal, 20-2awg, size 20, gold plated
0460-202-16141 is a male pin terminal,16-20awg, size 16, nickel plated
0460-202-1631 is a male pin terminal,16-20awg, size 26, gold plated
0460-215-16141 is a male pin terminal, 14awg, size 16, nickel plated
0460-204-12141 is a male pin terminal, 12-14awg, size 26, nickel plated

0462-201-20141 is a female socket terminal, 20-2awg, size 20, nickel plated
0462-201-2031 is a female socket terminal, 20-2awg, size 20, gold plated
0462-201-16141 is a female socket terminal,16-20awg, size 16, nickel plated
0462-201-1631 is a female socket terminal, 16-20awg, size 26, gold plated
0462-209-16141 is a female socket terminal, 14awg, size 16, nickel plated
0462-203-12141 is a female socket terminal, 12-14awg, size 26, nickel plated

Edit to add:
When you get into the circular connectors, some connectors will utilize multiple sizes of contacts from size 4 thru size 20