

RAM® Tough-Claw™ Small Clamp Base with Ball
RAM Mounts · Mount bases, arms and parts
Part number RAP-B-400U
Overview
The RAM Tough-Claw™ Small Clamp Base (RAP-B-400U) features tool-free installation and removal on round, square, and irregular-shaped rails and bars. The Tough-Claw™ tightens with a turn of the knob, securing to rails with an outer diameter from 0.625"–1.5" and to flat surfaces with a thickness from 0"–1.14". Integrated rubber pads inside the clamp help protect mounting surfaces, minimize scuffs and marring, and enhance grip for added stability. This base is ideal for mounting phones, action cameras, small tablets, and rod holders for rod storage. Popular mounting locations include aircraft yokes, bicycle handlebars and seat posts, kayak rails, and roll bars.
Highlights
- Small version designed to quickly clamp to round, square, and odd-shaped rails and bars ranging from .625" to 1.14" in outer diameter; rubber pads provide stable gripping and protection of mounting surface
- Ideal mounting base for phones, tablets, cameras, rod holders, and much more; includes 1" B size rubber ball for attachment to RAM® double socket arms
- Made of high-strength composite and stainless steel hardware for durability and reliability in the most demanding environments
- Backed by a Limited Lifetime Warranty from National Products Inc.
Verified specifications
| Brand | RAM Mounts |
|---|---|
| Manufacturer part number | RAP-B-400U |
| THICKRIM SKU | TR23408 |
| Condition | New |
| Units per pack | 1 |
| Configuration | Retail package, standard kit as shipped by the manufacturer |
| Warranty | Limited Lifetime Warranty from National Products Inc. |
| UPC | 793442943539 |
| Weight | 0.33 lb |
| Ball size | B Size (1") |
| Materials | High strength composite |
| Mounts on | ATV & UTV, Boat, Bicycle, Motorcycle, Car & truck, Wheelchair |
| Clamp range | .625" - 1.14" diameter |
| Product line | Tough-Claw™ |
| Packaging type | Poly Bag |
| Weight capacity | Standard Use: 2 lbs, Heavy-Duty Use: 1 lb |
| Mounting location | Rail, Handlebar, Mirror |
| Product dimensions | Overall Height: 4.24", Overall Width: 1.18" |


