RAM Mounts B-273-CU Add-A-Ball Base, 5/16-18 x 4 in Bolt

Build a more secure mounting point for RAM C-size components with the B-273-CU Add-A-Ball Base. This hardware-focused base replaces the bolt in compatible C-size assemblies and gives you a threaded attachment method for installations that need a direct, stable connection. It is designed for environments where vibration resistance, repeatable positioning, and dependable retention matter more than quick-release convenience. The 5/16"-18 x 4" long bolt format makes it suitable for a range of equipment, brackets, and fixed mounting surfaces that accept threaded hardware. By starting with a dedicated add-a-ball base, you can integrate the mount into a larger RAM system without compromising the structural integrity of the installation. That makes it a practical choice for fleet, industrial, and workstation deployments where the mount must stay put under daily use. For teams standardizing on RAM components, this base helps maintain compatibility across C-size configurations while keeping the installation clean and mechanically straightforward. It is a small part with a clear purpose: create a reliable anchor point for a mount that needs to perform consistently over time.