Amphenol FCI D-Sub ScrewlocksA range of male and female screwlocks for use with D-sub connectors.Stock numbers 863-2942, 863-3002, 673-4948 are UNC 4-40 female screwlocksStock number 673-4945 is an M3 female screwlockStock numbers 137-0840 and 137-1002 are UNC 4-40 male screwlocks