- Adds upper support for premium top level stability
- Must be used with C-HDM-401 support arm for additional support
- Simple slide and tighten length adjustment
- Easy installation to C-HDM-100 Series mounting bases, along with C-HDM-401 support arm
- Closed Length Overall closed length adjustment from center of pole 13.25″ (33.66 cm)
- Extended Length Overall extended length of support arm assembly from center of pole 22.75 inch (57.79 cm)
User Manuals and Installation Instructions
View C-HDM-404 Manual
Availability, Lead Times and Shipping
Please note that ALL Gamber-Johnson and Havis mounting and docking equipment typically takes at least a week to ship. Lead times can often be 3-6+ weeks or longer depending on the exact items purchased. The following is guidance only and changes frequently.
- Basic mounting hardware such as plates or poles: 1-2 weeks to ship
- Vehicle-specific kits or more complex mounting solutions: 2-4 weeks to ship
- Powered docking stations with port replication: 4-8+ weeks to ship.
Please call, email, or chat with us to discuss lead times as it specifically relates to your needs. Expedited shipping methods selected at checkout do not speed up lead times but rather reduce transit time when an order ships.