Nico Restricted Egress Hinge

The Nico Restricted Egress Friction Hinge combines the features of standard restrictor and egress only hinges. It provides protection against falling through windows in an initial restricted mode, and then offers a quick escape route in the event of a fire in the egress position. Supplied in matched pairs, the restricted egress hinge is fitted to the bottom of the sash with a matched unrestricted egress hinge fitted to the top. The single restrictor button is integral to the hinge and is designed to be less tempting to children, and the hinge automatically resets after closure from the egress position.

Features & Benefits

  • Rigorously tested ( see related downloads on this page )
  • Restricts initial window opening ( see technical data below )
  • Child resistant catch release for full opening, with automatic reset on closure
  • Unique geometry provides greater clear opening for escape
  • Stainless Steel riveted nose cap gives strength and reliability
  • 3 stage counterbore process improves resistance to wear
  • Glass reinforced nylon slide eliminates breaking and wear
  • 4.8mm Stainless Steel rivets improve load carrying
  • Stainless construction has exceptional corrosion resistance
  • Brass adjustment screw provides adjustable friction
  • 10 year mechanical guarantee

Testing & Technical

  • Made in Britain to an ISO 9001 Quality System
  • Meets the requirements of BS EN14351 Load Bearing Capacity of Safety Devices
  • Complies with BS 6375-2 : 2009 Strength and Operation Characteristics
  • Complies with Building Regulations Part B: 2013 for Fire Escape
  • Complies with BS 9991:2011 for Fire Escape
  • Restricts Window Openings to a maximum of 100mm in compliance with BS8213-1:2004 ( see technical data below )
  • Successfully security tested with Nico Xtra Bolts as a critical component within PAS 24 : 2016
  • Secured By Design Approved as a Police Preferred Specification
  • Successfully cycle tested as a critical component within BS EN 6375 Pt 2 ( Resistance to repeated opening and closing )
  • Successfully weather tested as a critical component within BS EN 6375 Pt 1 ( Air, wind and water testing )

Nico Egress hinges have been endurance tested with their maximum load carrying capacity to 3 times the British Standard requirement. Always refer to the ‘safe reaches for cleaning’ instructions in Approved Document K when specifying egress windows.

Technical Data

The Restricted Egress Hinge is manufactured in stainless steel and offers excellent load bearing characteristics. It is available in handed 13mm and 17mm stack heights. Slotted fixing holes in the base channel and sash bar, with a final fixing hole in each component, provide maximum sash/frame adjustment. The all stainless steel nose-cap is riveted on to the hinge for extra strength and rivet holes are counterbored in a 3 stage manufacturing process. This means parts are manufactured to tight tolerances and ensures reliable operation of the finished hinges. The friction slide is made from high strength glass reinforced nylon with an adjustable resistance screw to regulate friction.

It is recommended that fabricators check all restricted openings to ensure they comply with Building Regulations, as vent sizes and  profile variations will affect 100 mm opening.

Fitting instructions for Nico Restricted Egress Hinges are provided in the Restricted Egress Friction Hinges pdf and the Friction Hinge Fitting Guide link in related downloads.

300mm (12″)
400mm (16″)
Vent Type Side Hung Side Hung
Max. Vent Width 600mm 700mm
Max. Vent Height 1300mm 1300mm
Max. Vent Weight 22kg 26kg

13mm Range Part Numbers

300mm (12″)
400mm (16″)
Bulk Packed 25 25
Order No. L/H 8431L 8441L
Order No. R/H 8431R 8441R

17mm Range Part Numbers

300mm (12″)
400mm (16″)
Bulk Packed 25 25
Order No. L/H 8436L 8446L
Order No. R/H 8436R 8446R