| Thread Size | Shaft Material | 304 S.S Spanner Size | Shaft Part Number |
| 1/4″-20NC | 304 S.S. | 0.375″ OD | SHAFT6084S**** |
| 1/4″-20NC | Mild Steel | 0.375″ OD | SHAFT608MS**** |
| 1/4″-20NC | Zinc Plated | 0.375″ OD | SHAFT608ZP**** |
| 5/16″-18NC | 304 S.S. | 0.540″ OD | SHAFT6104S**** |
| 5/16″-18NC | Mild Steel | 0.540″ OD | SHAFT610MS**** |
| 5/16″-18NC | Zinc Plated | 0.540″ OD | SHAFT610ZP**** |
| 3/8″-16NC | 304 S.S. | 0.500″ OD | SHAFT6124S**** |
| 3/8″-16NC | Mild Steel | 0.500″ OD | SHAFT612MS**** |
| 3/8″-16NC | Zinc Plated | 0.500″ OD | SHAFT612ZP**** |
| 7/16″-14NC | 304 S.S. | 0.625″ OD | SHAFT6144S**** |
| 7/16″-14NC | Mild Steel | 0.625″ OD | SHAFT614MS**** |
| 7/16″-14NC | Zinc Plated | 0.625″ OD | SHAFT614ZP**** |
| 1/2″-13NC | 304 S.S. | 0.625″ OD | SHAFT6164S**** |
| 1/2″-13NC | Mild Steel | 0.625″ OD | SHAFT616MS**** |
| 1/2″-13NC | Zinc Plated | 0.625″ OD | SHAFT616ZP**** |
| 5/8″-11NC | 304 S.S. | 0.750″ OD | SHAFT6204S**** |
| 5/8″-11NC | Mild Steel | 0.750″ OD | SHAFT620MS**** |
| 5/8″-11NC | Zinc Plated | 0.750″ OD | SHAFT620ZP**** |
Contact BNB for Special Sizes not listed above
**** – Shaft Length Codes
(Used to Complete Shaft Part Numbers)
| 01 = 1/32″ | 09 = 9/32″ | 17 = 17/32″ | 25 = 25/32″ |
| 02 = 1/16″ | 10 = 5/32″ | 18 = 9/16 | 26 = 13/16″ |
| 03 = 3/32″ | 11 = 11/32″ | 19 = 19/32″ | 27 = 27/32″ |
| 04 = 1/8″ | 12 = 3/8″ | 20 = 5/8″ | 28 = 7/8″ |
| 05 = 5/32″ | 13 = 13/32″ | 21 = 21/32″ | 29 = 29/32″ |
| 06 = 3/16″ | 14 = 7/16″ | 22 = 11/16″ | 30 = 15/16″ |
| 07 = 7/32″ | 15 = 15/32″ | 23 = 23/32″ | 31 = 31/32″ |
| 08 = 1/4″ | 16 = 1/2″ | 24 = 3/4″ | 32 = 1″ |
First two digits of length code is whole inches.
Second two digits of length code is based on 32’s of an inch increments.
( Example: Length is 15-1/2” = 1516 )