| Image | Supplier | Item Code | Short Description |
|---|---|---|---|
| | G L Huyett Co | DRB-030 GLH | Round Ring Internal M30 CS PL |
| | G L Huyett Co | DRB-032 GLH | Round Ring Internal M32 CS PL |
| | G L Huyett Co | DRP-018 GLH | Round Ring External M18 CS PH |
| | G L Huyett Co | DRP-085 GLH | Round Ring External M85 CS PH |
