World-Class Mounting Systems

Size Guide

Ball Sizes
Arm Sizes
X
The unique double ball and socket design allows you to adjust your mount to the perfect viewing or operating angle, all with the turn of a single knob. This modular design can be configured with a variety of interchangeable components to fit your specific mounting needs.
B Size
Holds 2 lbs / 0.91 KG
1" Ball
Phones, Action Cameras, Light Duty Tablets
C Size
Holds 4 lbs / 1.81 KG
1.5" Ball
Fishfinders, Heavy Duty Tablets
D Size
Holds 6 lbs / 2.72 KG
2.25" Ball
Monitors, Large Fishfinders
E Size
Holds 15 lbs / 6.8 KG
3.38" Ball
Heavy Monitors
Ball Sizes Short Arm Medium Arm Long Arm
B Size Overall Length 2.42" / 6.1468cm 3.73" / 9.47cm 6.00" / 15.24cm
Socket-to-Socket Length 1.75" / 4.45cm 3.00" / 7.62cm 5.31" / 13.49cm
C Size Overall Length 3.56" / 9.04cm 5.69" / 14.45cm 9.13" / 23.19cm
Socket-to-Socket Length 2.50" / 6.35cm 4.66" / 11.84cm 8.00" / 20.32cm
D Size Overall Length 5.10" / 12.95cm 8.44" / 21.44 12.98" / 32.97
Socket-to-Socket Length 3.60" / 9.14cm 6.88" / 17.48cm 11.41" / 28.98cm
E Size Overall Length 7.31" / 18.57cm 12.63" / 32.08cm N/A
Socket-to-Socket Length 4.98" / 12.65cm 9.88" / 25.10cm N/A

RAM® Quick-Grip™ XL Spring-Loaded Phone Mount with Drill-Down Base

SKU Copied
SKU: RAM-B-138-PD4U
UPC Copied
UPC: 793442010385

RAM® Quick-Grip™ XL Spring-Loaded Phone Mount with Drill-Down Base
Copy SKU
SKU: RAM-B-138-PD4U
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| UPC: 793442010385

B SIZE
MEDIUM ARM
Size Guide
This version of the spring-loaded RAM Quick-Grip holder provides a secure fit for a variety of large phones and other devices. Included is a medium length RAM double socket arm and a 2.5 drill-down round ball base featuring the universal AMPS hole pattern. The ball and socket system provides shock and vibration damping, and allows for near-infinite adjustability to achieve an ideal viewing and operating angle of your device.

Features
  • Spring-loaded holder features adjustable side supports that provide a secure fit for a variety of large phones and other devices; easily insert and remove your phone with one hand
  • Includes 6.35cm (2.5") drill-down round ball base, medium length B size RAM® double socket arm, and diamond ball base; ball and socket technology allows for near-infinite adjustability
  • Made of powder-coated, marine-grade aluminum and high-strength composite for durability and reliability in the most demanding environments
  • Backed by a lifetime warranty
Tags: 3-Hole 120 Degree (Small), 7 plus, 7 Pro, 7T Pro, 9 PureView, AMPS 4-Hole, Apple, Aristo 2, Axon 10 Pro, Axon 9 Pro, B Size 1" (Holds 2 lbs), Blackberry, Blackview, BV9900, BV9900 Pro, Car & Truck, Car & Truck - Dashboard, car-truck, Cat, Complete kits, Dashboard, Drill-Down, DuraSport 5G, Eluga X1 Pro, Evolve X, Fiesta 2 LTE, Fiesta LTE, G6 Plus, G7 ThinQ, G8 ThinQ, G8S ThinQ, Galaxy A10, Galaxy A10e, Galaxy A10s, Galaxy A11, Galaxy A15, Galaxy A20, Galaxy A20e, Galaxy A30, Galaxy A50, Galaxy A50s, Galaxy A6, Galaxy A6 Plus, Galaxy A7, Galaxy A70, Galaxy A8, Galaxy A8 Plus, Galaxy A80, Galaxy A9, Galaxy A90 5G, Galaxy J5, Galaxy J7 (2017), Galaxy J7 (2018), Galaxy J7 Max, Galaxy J7 Prime 2, Galaxy Note 10, Galaxy Note 10 Plus, Galaxy Note 20, Galaxy Note 20 Ultra, Galaxy Note 8, Galaxy Note 9, Galaxy Note Fan Edition, Galaxy S10, Galaxy S10 5G, Galaxy S10 Plus, Galaxy S20 5G, Galaxy S20 FE 5G, Galaxy S20 Plus 5G, Galaxy S20 Ultra 5G, Galaxy S21 5G, Galaxy S21 Plus 5G, Galaxy S21 Ultra 5G, Galaxy S22 5G, Galaxy S22 Plus 5G, Galaxy S22 Ultra 5G, Galaxy S23, Galaxy S23 Plus, Galaxy S23 Ultra, Galaxy S24, Galaxy S24 Plus, Galaxy S24 Ultra, Galaxy S25, Galaxy S25 Plus, Galaxy S25 Ultra, Galaxy S8, Galaxy S8 Active, Galaxy S8 Plus, Galaxy S9, Galaxy S9 Plus, Galaxy XCover 4, Galaxy XCover 5, Galaxy XCover FieldPro, Galaxy XCover Pro, Galaxy XCover7, Google, Harmony, HTC, Huawei, iPhone 11, iPhone 11 Pro Max, iPhone 12, iPhone 12 Pro, iPhone 12 Pro Max, iPhone 13, iPhone 13 Pro, iPhone 13 Pro Max, iPhone 14, iPhone 14 Plus, iPhone 14 Pro, iPhone 14 Pro Max, iPhone 15, iPhone 15 Plus, iPhone 15 Pro, iPhone 15 Pro Max, iPhone 16, iPhone 16 Plus, iPhone 16 Pro, iPhone 16 Pro Max, iPhone 16e, iPhone 8 Plus, iPhone Xr, iPhone Xs Max, K20, K20 Plus, Kyocera, Mate 20 Pro, Mate 20 X, Medium Arm, Mi 9, Mi 9 Explorer, Mi Mix 2S, Mi Mix 3, moto e4 plus, moto g5s plus, moto g6, moto g7 power, moto X4, moto z2, moto z2 play, moto z3, Motorola, Nokia, OnePlus, P30 Pro, Panasonic, Phone, Phone 2, Pixel 2, Pixel 2 XL, Pixel 3, Pixel 3 XL, Pixel 3a, Pixel 3a XL, Pixel 4, Pixel 4 XL, Pixel 6, Pixel 6 Pro, Pixel 7, Pixel 7 Pro, Pixel 8, Pixel 8 Pro, Quick-Grip™ XL, RAM-B-138-PD4U, Razer, RHINO C6, S42, S62, S62 Pro, Samsung, Social Mobile, Sony, Stylo 3 Plus Titan, Stylo 4, Supports Device With Case, U11, V30, V35 ThinQ, V40 ThinQ, V50 ThinQ, X venture, Xiaomi, Xperia L1, Xperia L2, Xperia XZ1, Xperia XZ2, Xperia XZ3, ZTE

Information

Resources

Compatible Devices

Information

Product Weight
0.37 kg (0.81 lbs)
Hardware Included
Assembly Hardware
Holder Dimensions
Height Range: 14.61cm (5.75") - 18.42cm (7.25") Width Range: 6.67cm (2.625") - 9.21cm (3.625") Max Depth: 1.83cm (0.72")
Socket To Socket Length
7.62cm (3")
Hole Pattern
4-Hole AMPS: 3.00 cm (1.181") X 3.80 cm (1.496") 3-Hole 120-Degree: 4.60cm (1.812") Diameter
Plate Size
6.35cm (2.5") Diameter
Ball Size
B Size (1")
Weight Capacity
Standard Use: 0.91 kg (2 lbs) Heavy-Duty Use: 0.45 kg (1 lbs)
Materials
Marine-grade aluminumHigh strength composite
Packaging Type
Poly Bag

Resources

INSTRUCTIONS
DOCUMENTS

Compatible Devices

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Components

RAM Mounts
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RAM-B-138U
RAM® Double Ball Drill-Down Mount with Diamond Plate - Medium
RAM Mounts
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RAM-HOL-PD4U
RAM® Quick-Grip™ XL Large Phone Holder


Complete Your Solution

RAM Mounts
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RAM-B-138U
RAM® Double Ball Drill-Down Mount with Diamond Plate - Medium
RAM Mounts
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RAM-HOL-PD4U
RAM® Quick-Grip™ XL Large Phone Holder

Locking Knobs for B Size Socket Arms

RAM Mounts
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RAM-KNOB3LU
RAM® Key Lock Knob with Brass Insert for B Size Socket Arms
RAM Mounts
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RAM-KNOB3LSU
RAM® Key Lock Knob with Steel Insert for B Size Socket Arms
RAM Mounts
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RAP-S-KNOB3-4U
RAM® Pin-Lock™ Security Knob with 4-Pin Pattern for B Size Socket Arms
RAM Mounts
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RAP-S-KNOB3-5U
RAM® Pin-Lock™ Security Knob with 5-Pin Pattern for B Size Socket Arms
RAM Mounts
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RAP-S-KNOB3-7U
RAM® Pin-Lock™ Security Knob with 7-Pin Pattern for B Size Socket Arms
RAM Mounts
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RAP-S-KNOB3-6U
RAM® Pin-Lock™ Security Knob with 6-Pin Pattern for B Size Socket Arms
RAM Mounts
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RAP-S-KNOB3U
RAM® Pin-Lock™ Security Knob for B Size Socket Arms

Diamond Plate Accessories

RAM Mounts
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RAP-462NPT
RAM® Vibe-Safe™ with NPT Adapter for 2-Hole Holders
RAM Mounts
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RAM-HOL-ROTO1U
RAM® Roto-View™ Adapter Plate
RAM Mounts
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RAM-MAG-1U
RAM® Screen Magnifier for Handheld Devices
RAM Mounts
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RAP-326FU
RAM® EZY-Mount™ Quick Release Female Adapter
RAM Mounts
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RAP-326U
RAM® EZY-Mount™ Quick Release Adapter Kit
RAM Mounts
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RAM-MAG88DU
RAM® Tough-Mag™ 88MM Diameter Magnetic Adapter with 2-Hole AMPS Pattern
RAM Mounts
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RAP-B-351-4RU
RAM® Rotating Ball Adapter for Phone and Handheld Holders - B Size

Accessories for AMPS Pattern Base Components

RAM Mounts
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RAM-GDS-DOCKB-SAM75U
GDS® Tough-Dock™ Body for Samsung Tab A7 10.4
RAM Mounts
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RAM-GDS-DOCKB-SAM65U
GDS® Tough-Dock™ Body for Samsung Tab A 10.1 SM-T510
RAM Mounts
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RAM-GDS-DOCKB-AP32U
GDS® Tough-Dock™ Body for Apple iPad 10th Gen, Pro 11 & Air 11
RAM Mounts
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RAM-202-225B-2U
RAM® Backing Plate Adapter
RAM Mounts
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RAM-GDS-DOCKB-SAM78U
GDS® Tough-Dock™ Body for Samsung Tab S10+, S9+, S8+ & More
RAM Mounts
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RAM-GDS-DOCKB-SAM76U
GDS® Tough-Dock™ Body for Samsung Tab S7 11" & Tab S9 FE
RAM Mounts
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RAM-GDS-DOCKB-SAM62U
GDS® Tough-Dock™ Body for Samsung Tab Active3 and Tab Active2
RAM Mounts
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RAM-HOL-ROTO1U
RAM® Roto-View™ Adapter Plate
RAM Mounts
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RAM-MARI-NUT-4U
RAM® Mari-Nut™ Rubber Expansion Mounting Hardware
RAM Mounts
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RAM-MARI-RIVET-4U
RAM® Mari-Rivet™ Aluminum Pop Rivets
RAM Mounts
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RAP-365B-1-339U
RAM® Triple Ball and Socket Magnetic Base with AMPS Hole Pattern
RAM Mounts
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RAP-403FU
RAM® Spacer Plate Accessory for Flush Mounting
RAM Mounts
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RAP-400-202U
RAM® Trolling Motor Stabilizer - Tough-Claw™ .625" - 1.14" Medium Arm
RAM Mounts
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RAP-356U
RAM® Adapt-To-RAM™ Hole Pattern Plate Adapter
RAM Mounts
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RAP-403U
RAM® Cable Manager with AMPS Hole Pattern for Electronic Mounts
RAM Mounts
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RAM-GDS-DOCKB-SAM67U
GDS® Tough-Dock™ Body for Samsung Tab A 8.4 SM-T307
RAM Mounts
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RAP-404-202U
RAM® Trolling Motor Stabilizer - Tough-Claw™ 1” - 1.6” Medium Arm
RAM Mounts
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RAM-GDS-DOCKB-SAM66U
GDS® Tough-Dock™ Body for Samsung Tab A 10.5 SM-T590 & T-597
RAM Mounts
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RAM-GDS-DOCKB-SAM55U
GDS® Tough-Dock™ Body for Samsung Tab A 8.0 (2019) SM-T290 & T-295
RAM Mounts
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RAM-GDS-DOCKB-SAM80U
GDS® Tough-Dock™ Body for Samsung Tab A9 & A7 Lite 8.7”
RAM Mounts
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RAM-GDS-DOCKB-SAM63U
GDS® Tough-Dock™ Body for Samsung Tab A 8.0 (2018) SM-T387
RAM Mounts
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RAM-GDS-DOCKB-SAM83U
GDS® Tough-Dock™ Body for Samsung Tab A8 10.5 SM-X200
RAM Mounts
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RAM-GDS-DOCKB-AP37U
GDS® Tough-Dock™ Body for iPad Pro 12.9 3rd - 6th Gen, Pro 13 & Air 13
RAM Mounts
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RAM-B-101-225B-NFCU
RAM® NFC Extender with Dashboard Mount
RAM Mounts
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RAM-GDS-DOCKB-SAM62-NFCU
GDS® Tough-Dock™ Body for Tab Active3 with NFC Extender
RAM Mounts
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RAP-400-D-202U
RAM® Trolling Motor Stabilizer - Tough-Claw™ .625" - 1.14" Long Arm
RAM Mounts
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RAP-DOCK-SBLU
RAM® Large Side Accessory Bracket for Vehicle Docks
RAM Mounts
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RAM-GDS-DOCKB-SAM88U
GDS® Tough-Dock™ Body for Samsung Tab A9+
RAM Mounts
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RAM-GDS-DOCKB-SAM54NU
GDS® Tough-Dock™ Body for Samsung Tab Active Pro
RAM Mounts
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RAP-B-351-4RU
RAM® Rotating Ball Adapter for Phone and Handheld Holders - B Size
RAM Mounts
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RAP-DOCK-D10VU
RAM® 100mm & 75mm VESA to AMPS Hole Pattern Adapter Plate
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