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Black steel corner TV mount with dual articulating arms folded against wall plate

Monoprice Inc.

Monoprice 143200 Cornerstone TV Mount 32-70in 99lbs VESA 600x400

SKU CH-AV51-HYKHZ

Full-motion corner TV mount for 32–70 in screens up to 99 lbs with 600×400 VESA, ±45° swivel and tilt from +5° to –15°

  • Product nameMonoprice Premium Full Motion TV Wall Mount Bracket Corner F
  • Supported TV sizeMinimum Display Size*: 32 in Maximum Display Size*: 70 in
  • TV weight limitMaximum Display Weight: 99 lb
  • VESA compatibilityMinimum VESA: 75 × 75 Maximum VESA: 600 × 400
  • Distance from wallWall Plate Dimensions (per arm): 2.6 in x 8.6 in
  • Rotation range±3°
  • Corner installation saves space with dual-arm design
  • Full-motion articulation gives ±45° swivel and +5° to -15° tilt
  • Supports 32–70 in screens up to 99 lbs
  • VESA 75×75 to 600×400 fits curved and flat panels
  • Cold-rolled steel construction ensures rigid, durable mounting

Corner-Friendly Articulating Mount

The Monoprice Cornerstone 143200 is a full-motion TV wall bracket designed for corner installations. It supports flat and curved screens from 32 to 70 inches weighing up to 99 lbs. The dual-arm design allows independent movement for centred or off-centred corner mounting as well as flat walls.

Tilt Swivel and Rotation Range

The mount provides a tilt range of +5° to -15° and a swivel range of ±45° for wide viewing angles. A rotation range of ±3° allows fine levelling adjustment. The arms extend and retract to position the screen as needed.

VESA 75x75 to 600x400 Compatibility

The bracket fits VESA patterns from 75x75 up to 600x400, covering most TVs in the supported size class. A wall plate per arm measures 2.6 by 8.6 inches. The steel and plastic construction weighs 12.68 lbs and comes in black.

How it compares

Measured against everything we stock in TV Wall Mounts & Install Kits, at today’s prices. Recalculated every night.

Price $50.99
Typical for this category: the median of 1,540 items is $47.99.

Specifications

Product
Brand nameMonoprice
Model name143200
Part number143200
Product nameMonoprice Premium Full Motion TV Wall Mount Bracket Corner Friendly For 32 in To 70 in TVs up to 99 lb, Max VESA 600 × 400, Fits Curved Screens
Product colorBlack
Size & build
Main materialConstruction: Steel and plastic
TV weight limitMaximum Display Weight: 99 lb
VESA compatibilityMinimum VESA: 75 × 75
Maximum VESA: 600 × 400
Tilt angle+5° ~ -15°
Compatibility
Supported TV sizeMinimum Display Size*: 32 in
Maximum Display Size*: 70 in
More details
Distance from wallWall Plate Dimensions (per arm): 2.6 in x 8.6 in
Rotation range±3°
Swivel range±45°

Questions about this item

How do I install the dual-arm mount on a corner wall, and what step is often missed?

Mount each arm independently to studs using the 2.6 x 8.6 in wall plates, then attach the TV bracket to the arms; the step often missed is levelling the TV with the ±3° rotation adjustment after the arms are fixed.

What maintenance or replacement will the Cornerstone 143200 need over time?

Periodically check and retighten the four pivot bolts on the articulating arms and the VESA mounting screws; no other components require scheduled replacement.

What is the first limit reached when the mount is extended and swivelled daily?

The ±45° swivel range and the 99 lb weight capacity are the primary limits; exceeding either can stress the cold-rolled steel arms and wall anchors.

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