Boulder Claw | Clamp Adapter for Phone Mounts
Boulder Claw
Clamp adapter for compatible Built4it phone mounts.
£19.95 standalone — No codes, no fuss.
Free UK Delivery • 5-Year Warranty • 1/4" Compatible Fitting
📦 In Stock — Bundle Options Available
The Boulder Claw is available now as a standalone clamp adapter or as part of selected Built4it holder offers.
FREE with the Ultra Boulder Holder where shown.
£9.95 add-on with selected compatible Built4it holders where offered.
⚠️ Beware of cheap clamp adapters.
Weak plastic jaws • poor grip • stripped threads • no warranty • no comeback.
Built4it gear is selected for real-world use — stronger materials, proper support, and honest product claims.
When suction won’t work, bring the Claw.
The Boulder Claw gives compatible Built4it phone mounts another way to lock down. Instead of relying on a smooth flat surface for suction, the Claw lets you mount to many bars, rails, handles, poles, roll cages, bike bars, boat rails and machinery cab points.
It’s the adapter you want when the surface is awkward, textured, curved, dusty, damp, or simply not suitable for a suction cup.
- Clamp mounting option: useful where suction cups cannot grip properly.
- Wide-fit use: suitable for many bars, rails, handles and pole-style mounting points.
- Quick-lock tightening: clamp it down, set your mount, and get on with the job.
- Grip contact design: helps reduce movement when properly tightened.
- Compact and portable: keep it in the cab, tool bag, van, bike kit or travel setup.
- 1/4" compatible fitting: designed for compatible Built4it Boulder Holder mount systems.
Straight talk: clamp fit depends on the shape, diameter, surface and strength of the mounting point. Always test the grip before trusting it with your device.
Built For
- Construction cab handrails
- Plant machinery interiors
- Bike handlebars
- Roll cages and 4x4 setups
- Boat rails and workshop rails
- Awkward mounting points where suction fails
Bundle Options
- £19.95 — standalone price
- FREE — with Ultra Boulder Holder where shown
- £9.95 — add-on with selected compatible holders
Why cheap clamps are false economy
Cheap clamp adapters can slip, flex, strip or lose grip when vibration starts working against them. The Boulder Claw gives your mount a tougher alternative when suction is not the right tool for the job.
Compatibility
1/4" compatible fitting: designed for compatible Built4it Boulder Holder mount systems.
Check your holder connection and mounting point before purchase.
Important: If your mount uses a different thread, connector or fitting, contact us before ordering so we can help confirm compatibility.
What’s in the Box
- 1x Boulder Claw clamp adapter
- Mounting hardware where applicable
- Quick-start guide
Warranty & Support
🛡️ 5-Year Built4it Warranty
🚚 Free UK Delivery
💳 30-Day Money-Back Guarantee
🇬🇧 UK-based support
Pricing
Standalone — £19.95
Free UK delivery included.
FREE with the Ultra Boulder Holder where shown.
£9.95 add-on with selected compatible Built4it holders where offered.
Safety note: Always mount responsibly. Do not block driver view, controls, airbags or safe operation of any vehicle or machine. Check grip before use.
Suction won’t stick? Rails, bars and handles are back in play.
Clamp it. Lock it. Run it.