The RAM® RAP-B-379U-311862 Ball Adapter is a compact and versatile mounting component designed to integrate seamlessly into RAM® B Size mounting systems. Featuring a 25mm rubber ball connected to a 5/16"-18 threaded stainless steel post, this adapter provides a secure and highly adjustable connection point for a wide variety of mounting applications.

The RAM® ball-and-socket system allows near-infinite adjustment, making it easy to position mounted devices at the ideal viewing angle. The integrated rubber ball also helps absorb vibration and shock, improving stability and helping protect mounted electronics in demanding environments.

Constructed from high-strength composite materials with a stainless steel threaded post, this adapter is built for durability and reliable long-term performance across motorcycle, automotive, marine, industrial, and mobile applications.

• Compact RAM® ball adapter with threaded male post
• Includes RAM® B Size 25mm rubber ball
• 5/16"-18 x 15.9mm threaded stainless steel post
• Compatible with RAM® B Size double socket arms and accessories
• RAM® ball-and-socket technology allows near-infinite adjustability
• Rubber ball helps reduce vibration and shock transfer
• Constructed from high-strength composite and stainless steel
• Ideal for motorcycles, vehicles, marine, industrial, and mobile mounting setups
• Compact and durable design for versatile mounting applications

Specifications:

• Thread pitch: 5/16"-18 x 15.9mm
• Ball size: RAM® B Size (25mm)
• Weight capacity (standard use): 0.9kg
• Weight capacity (heavy-duty use): 0.45kg
• Materials: High-strength composite and stainless steel
• Packaging type: Poly bag
• Approximate weight: 41g

Availability:

RAM Mounts supply is pretty good in Australia, but they have thousands of parts so we can't stock them all on our shelves. If our site shows this item as in stock in our warehouse (see above), great! It will ship immediately from our warehouse. If it shows as Pre-Order, we get fortnightly shipments from RAM Mounts and our site should show if it's in stock in Australia.

• If in stock in Australia we can have it in about a week or less
• If it's not in stock in Australia, unfortunately the ETA can be quite long, as RAM Mounts in the USA have a manufacturing lead time of 6-8 weeks. But if you'd like to contact us we can find out a more accurate ETA for you