These are the different sizes of Schaller locknuts.
| Model | R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | R10 |
| Width |
39.7mm 1.5625" |
41.3mm 1.6825" |
42.85mm 1.6875" |
42.85mm 1.6875" |
44.45mm 1.7500" |
39.7mm 1.5625" |
41.3mm 1.6250" |
42.85mm 1.6875" |
42.85mm 1.6875" |
42.85mm 1.6875" |
| E-e |
33.25mm 1.3090" |
34.80mm 1.3710" |
35.95mm 1.4155" |
36.45mm 1.4355" |
37.90mm 1.491" |
33.25mm 1.309" |
34.80mm 1.3710" |
36.45mm 1.4355" |
36.45mm 1.4355" |
36.45mm 1.4355" |
| Spacing |
6.10mm .2398" |
6.35mm .2502" |
6.60mm .2591" |
6.70mm .2631" |
6.95mm .2736" |
6.10mm .2398" |
6.35mm .2502" |
6.70mm .2631" |
6.70mm .2631" |
6.70mm .2631" |
| Bullet recess | No | No | No | No | No | Yes | Yes | No | Yes | No |
