System X™ Universal Interface Arms


For XL Screens


These interface arms are designed to mount XL screens in a fixed position across one or two System X horizontal mounting rails. The universal design is compatible with a variety of different screens and allows them to be mounted in either landscape or portrait orientations. Levelling screws on each interface arm provide post installation height adjustment and a mounted depth of 51.5mm from the wall allows easy access for cables and connectors.


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  • Heavy duty arms capable of supporting substantial loads
  • Suitable for landscape or portrait mounting
  • Can be mounted across single or dual horizontal mounting rails to suit the application
  • Lateral adjustment - position arms anywhere along the length of the rail
  • Includes levelling screws to adjust the screen height
  • Safety screws help prevent unauthorised removal of screens
  • Simple ‘hook-on’ installation
  • Recommended screen size (landscape) 72" (182.9cm) and over
  • Recommended screen size (portrait) 42" (106.7cm)  and over
  • Max load (single rail mounting): 70kg (154lbs)
  • Max load (twin rail mounting): 200kg (441lbs)
  • VESA® & non-VESA fixings up to 800mm* (vertical dimension)
  • Depth FROM WALL (when rail mounted): 51.5mm (2")
  • Colour: Black
  • Supplied in pairs

    *The VESA specification of the BT8390-VESA800F refers to the vertical dimension only. All System X interface arms can be positioned as far along the rail as necessary.
BT8390-VESA800F - System X™ Universal Interface Arms Can be mounted across dual horizontal mounting rails Can be mounted across a single horizontal mounting rail Features height adjustment screws
Features safety screws to prevent unauthorised removal of screens Features height adjustment & safety screws Suitable for VESA fixings up to 800mm BT8390-VESA800F - System X™ Universal Interface Arms

Specification Sheet

Specification Sheet (PDF)


Installation Guide

Installation Guide (PDF)


Technical Drawing

Technical Drawing (PDF)

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System X™ Universal Interface Arms

Designed for screens using VESA and non-VESA fixings up to 1200mm (47.2")