RAM Small Tough-Claw™ Base with Long Double Socket Arm and Universal RAM® X-Grip® Cradle for 7"-8" Tablets - RAM-B-400-C-UN8U

The RAM-B-400-C-UN8U consists of the Tough-Claw rail clamp base, LONG length double socket arm and universal spring loaded RAM® X-Grip® cradle for 7"-8" tablets. The spring loaded RAM® X-Grip® cradle expands and contracts, allowing for a perfect custom fit of your tablet. Included are easy access grip knobs for quick insertion and release of your handheld device. The Tough-Claw rail clamp base is the perfect mounting base for quick and easy tool-less installation and removal on round, square, odd shaped rails and bars. The Tough-Claw can be clamped on rails from 0.625" - 1.5" outer diameter. Perfectly suited for mounting on the yoke of an aircraft, handlebars and seat posts of bicycles, kayak rails, roll bars and much more, the RAM® Tough-Claw will soon become another essential RAM® component in your collection of mounting options. 

The RAM® X-Grip® includes a device tether recommended for outdoor applications. The cradle is compatible with handheld devices that will fit the dimensions listed below. It is important to verify the dimensions of your handheld device with a case/sleeve/skin when determining the overall size. 

Clamping Range (Rail/Tube Surfaces):
0.625" to 1.5"

Clamping Range (Flat Surfaces):
0" to 1.14"

Cradle Dimensions 
Minimum Width = 2.5" (Minimum Height = 7")
Maximum Width = 5.75" (Minimum Height = 4")
Depth = 0.875" 

un8 aniamation 

1. Spring loaded cradle expands and contracts for perfect fit of your tablet
2. Rubber coated tips will hold your tablet firm and stable
3. Socket technology allows for multiple adjustment angles and articulation of your tablet
4. Easy access grip knobs, located on the back of the cradle for quick release of your tablet
5. Includes Tether for open cockpit and extreme environments
6. Lifetime warranty
7. Rustproof
8. Made in U.S.A. 

Powder Coated Marine Grade Aluminum, Marine Grade Stainless Steel Components & High Strength Composite

Ball Size: 
1" Rubber Ball "B" Size 

RAM highly recommends using the provided Tether for all open cockpit applications while using this product. The "U" in the part number reflects product packaged in poly bag. 

5 lbs.

  • 7"-8" Tablets
  • Amazon

    Fire 7

    Fire HD 8


    Kindle Oasis

    Kindle Paperwhite

    Kindle Voyage


    iPad mini (1st Gen)

    iPad mini 2

    iPad mini 3

    iPad mini 4

    iPad mini 5

    iPad mini 6


    MeMO Pad 8

    Vivo Tab 8

    ZenPad 8.0

    ZenPad C 7.0

    ZenPad S 8.0

    ZenPad Z8

    ZedPad Z8s


    Venue 7

    Venue 7 (2014)

    Venue 7 3741

    Venue 8

    Venue 8 Pro 5855


    Pro Tablet 408

    Slate 7


    MediaPad M3

    MediaPad M3 Lite

    MediaPad T1 7.0

    MediaPad T1 8.0

    MediaPad T3 7

    MediaPad T3 8


    Ideapad Miix 300

    Idea Tab A1000

    Idea Tab A2107

    Idea Tab A3000

    Tab 2 A7-10

    Tab 2 A7-20

    Tab 2 A7-30

    Tab 2 A8

    Tab 4 8

    Tab 4 8 Plus

    Tab 7 Essential

    Tab A7-30

    Tab A7-40

    Tab A7-50

    Tab A8-50

    Tab M8 HD

    Tab S8

    Tab3 7

    Tab3 8

    Yoga Tablet 8

    G Pad 7.0

    G Pad F 8.0 (2nd Gen)

    G Pad F2 8.0

    G Pad II 8.0

    G Pad X 8.0

    G Pad X II 8.0


     Shield Table


    McNally OverDryve 7

    McNally OverDryve 7 Pro

    McNally OverDryve 7 RV

    McNally OverDryve 7c

    McNally OverDryve 8 Pro

    McNally Road Explorer 7

    McNally Road Explorer 70

    McNally RV Tablet 70

    McNally RVND 7

    McNally TND 740

    McNally TND Tablet 70

    McNally TND Tablet 80


    Galaxy Tab 2 7.0

    Galaxy Tab 3 7.0

    Galaxy Tab 3 8.0

    Galaxy Tab 3 Lite 7.0

    Galaxy Tab 4 7.0

    Galaxy Tab 4 8.0

    Galaxy Tab 7.7

    Galaxy Tab A 7.0

    Galaxy Tab A 8.0

    Galaxy Tab A 8.0 (2017)

    Galaxy Tab A 8.0 (2018)

    Galaxy Tab A 8.0 (2019)

    Galaxy Tab A 8.4

    Galaxy Tab A7 Lite 8.7

    Galaxy Tab A 8.4

    Galaxy Tab A7 Lite 8.7

    Galaxy Tab Active2

    Galaxy Tab E 7.0

    Galaxy Tab E 8.0

    Galaxy Tab Pro 8.4

    Galaxy Tab S 8.4

    Galaxy Tab S2 8.0


    Matrix Z1 7”

Price Match

Yes No

OC Mounts will NOT price match: 
- Items from online marketplaces, auction sites, or sites that require membership.
- Items from unauthorized partners of RAM Mounts. (RAM will gladly tell you who is an authorized partner.) 
- Misprinted ad prices of other retailers or “going out of business"/closeout sales. 
- Ads for free gift or gift card with purchase. Percentage Off or Buy One, Get One Free and Out of Stock/Backorder items. 
- Instant Rebates, Bundle Offers, Free Shipping Offers, Mail-in Offers, or Offers that include financing