

RAM Mounts Tough-Claw Small Clamp Base with Ball (RAP-B-400U) installs and removes without tools: open the claw, place it around a round, square or irregular rail from 15.9–29 mm (0.625"–1.14") and tighten it with a turn of the knob. Integrated rubber pads grip firmly while protecting the surface from scuffs. Typical spots include aircraft yokes, bicycle and motorcycle handlebars, kayak rails, roll bars and wheelchair rails; the 1" B-size ball takes any B-size double socket arm.
📦 What's in the box – RAP-B-400U
- Tough-Claw small clamp base – for rails Ø 15.9–29 mm, rubber pads, tightening knob
- Pin-Lock ball adapter – B-size 1" ball (RAP-B-397BNHU)
💡 To get started, you might also consider a short B-size double socket arm and a device holder such as the X-Grip phone holder.
Key Features
- Tool-free – installs and tightens with a turn of the knob; easy to move between locations
- Grips any rail shape – round, square and irregular rails Ø 15.9–29 mm (0.625"–1.14")
- Rubber pads – stable grip that protects the mounting surface from scuffs and marring
- B-size 1" ball – connects to any RAM B-size double socket arm for near-infinite adjustment
- Load rating – up to 2 lb (0.9 kg) in standard use and 1 lb (0.45 kg) in heavy-duty use; ideal for phones, GPS units, scanners and small tablets
- Durable materials – high-strength composite with stainless steel hardware, lifetime warranty
Compatibility
- Round, square and irregular rails Ø 15.9–29 mm (0.625"–1.14")
- All RAM B-size (1") double socket arms and ball components
Technical Specifications
| Part Number | RAP-B-400U |
|---|---|
| Product Type | Rail / clamp ball base, B-size |
| Connection | B-size (1" / 25.4 mm) ball |
| Clamp Range | Ø 15.9–29 mm (0.625"–1.14") |
| Load Capacity | 2 lb (0.9 kg) standard use; 1 lb (0.45 kg) heavy-duty use |
| Dimensions | Height × width 108 × 30 mm (4.24" × 1.18") |
| Material | High-strength composite, stainless steel hardware |
| Weight | 0.15 kg (0.33 lb) |
| Warranty | Lifetime warranty (RAM Mounts) |
| In the Box | Tough-Claw small clamp base, pin-Lock ball adapter |
You will find matching cradles, holders and more RAM mounting parts in our Mobile Terminal Accessories collection. Planning a vehicle or forklift installation, or ordering for a whole fleet? Contact us for project support and volume pricing.
Recently Viewed
Don't forget! The products that you viewed. Add it to cart now.
People Also Bought
Here’s some of our most similar products people are buying. Click to discover trending style.







