HD Innovations HD UMS Round Rail Clamp (.875 to 1.25")

Built for harsh marine and off-road conditions, the HD UMS Round Rail Clamp locks your electronics mount in place with confidence. CNC-machined 6061-T6 aluminum and a Type III hardcoat anodized finish deliver long-term strength and corrosion resistance. A TPU over-molded ball head bites and holds without slipping, while included soft rubber ring inserts help you dial in the perfect fit on common round rails.

Why it’s great

• Rock-solid hold in waves, chop, and trail vibration.
• Corrosion-resistant build for salt, spray, and freeze/thaw.
• Non-slip ball interface for precise, repeatable positioning.
• Fast install with included rubber inserts.
• System-ready versatility with HD UMS and 1.5" ball components.

Compatibility & Use

Mount on boats, ATVs/UTVs, and rugged setups where you need a clean, secure clamp on a round rail. Works with HD UMS system components and any 1.5" ball mounting parts, including double-socket arms.

Tech Specs — HD UMS Round Rail Clamp

• Rail diameter: 7/8" (0.875") to 1-1/4" (1.25")
• Material: 6061-T6 aluminum, CNC-machined
• Finish: Type III hardcoat anodized
• Ball head: TPU over-molded, non-slip, wear-resistant
• Inserts: Soft rubber ring inserts (various diameters)
• Interface: Compatible with 1.5" ball components, incl. double-socket arms

EZOKO Pro Tip

For extra grip on smooth rails: wrap electrical tape sticky-side down, twist, then wrap sticky-side up where the clamp sits. Place the clamp directly on the tape for a bite that won’t creep.

Ready to mount with confidence? Add the HD UMS Round Rail Clamp to your rig.