| Image | Summary | ||||
|---|---|---|---|---|---|
 | Hugh Banner (HMS Screwgate) | HMS | manual | gate stopped - machined shoulder stop | late 20th century screwlock |
 | Hugh Banner HB 11mm Autolock (Captive Pin) | asymmetric D | full-auto | twist | 30kN captive pin twistlock |
 | Hugh Banner HB HMS Autolock | HMS | full-auto | twist | 1990's twistlock |