RAM X-Grip Universal Smartphone Cradle - Flat Surface Mount

RAM-B-138-UN7U – RAM® X-Grip® Phone Mount with Drill-Down Round Base

The RAM-B-138-UN7U pairs the RAM® X-Grip® universal phone cradle with a 63.5mm (2.5") drill-down round base, for a permanent, flat-surface install on dashboards, consoles, or cabinetry.

Key Features

• Spring-loaded X-Grip design with rubber caps holds the phone securely without covering the screen, camera, or buttons; includes an optional device tether for rugged use
• 63.5mm (2.5") drill-down round base bolts to any flat surface; supports both 4-hole AMPS and 3-hole 120-degree mounting patterns
• Medium-length B size RAM® double socket arm with ball-and-socket design for near-infinite positioning
• Powder-coated marine-grade aluminium, stainless steel hardware, and high-strength composite construction
• Backed by a lifetime warranty

What's Included

• RAM-B-202U round base
• RAM-B-201U double socket arm
• RAM-HOL-UN7BU X-Grip® universal phone cradle

Dimensions & Specifications

• Round base diameter: 63.5mm (2.5")
• Hole pattern, 4-hole AMPS: 30mm x 38mm (1.181" x 1.496")
• Hole pattern, 3-hole 120-degree: 46mm (1.812") diameter
• Arm length, overall: 94mm (3.69")
• Arm length, socket-to-socket: 76mm (3")
• Cradle minimum device width: 47.6mm (1.875") — requires minimum device height 108mm (4.25")
• Cradle maximum device width: 82.6mm (3.25") — requires minimum device height 57.2mm (2.25")
• Cradle maximum device depth: 22.2mm (0.875")
• Ball size: B size, 1" rubber ball
• Weight: 336g (0.74 lb)

Compatible Devices

Fits hand-held devices within the cradle dimensions above, with or without a case. For the full list of 100+ compatible phone models across 14 brands, see our RAM-HOL-UN7BU listing.

Videos

• RAM X-Grip overview
• RAM X-Grip installation demo