
| T. | T.Needle thickness |
| C. | C.Hook length |
| E. | E.Hook diameter |
| G. | G.Length from throat to Shaft upperside |
| P. | P.Height of closed latch |
| S. | S.Length of throat |
| J. | J.Butt width |
| L. | L.Guide height |
| M. | M.Latch motion |
| B. | B.Working length |
| D. | D.Shaft height |
| F. | F.Hook wire thickness |
| Q. | Q.Length between head end and point of closed latch |
| R. | R.Length from front side of butt to throat |
| H. | H.Butt height |
| K. | K.Length from front side of butt to end of guide |
| N. | N.Latch spoon height |
| O. | O.Overall Length |
| Liba | Mayer & CIE |
| Mayer Karl | Colli and many more |