Stay Open Restrictor

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Fixed restrictor stay with hold open function for use with the Sterling and Storm Balanced heavy duty hinges


  • Designed to prevent the window from closing from 'stay open' positions
  • Stay open position locates automatically on opening of window
  • Compatible with Sterling and Storm Balanced 16", 22" and 26" top hung hinges
  • Non handed product to reduce stock inventory
  • No routing required
  • Full Technical and Sales Support available
  • Manufactured from Austenitic* stainless steel for high corrosion resistance
  • 12 Year Guarantee (details available upon request)
  • Suitable for 16mm-18mm hardware cavity
  • Composite stainless steel and plastic slider for strength and maximum wear resistance

*Austenitic 304 stainless steel for high corrosion resistance. 316 MarineTek range available on request


  • Reference BS 6375-2 Load bearing safety devices, SIS 212 and EN 1670

Important Note: all separate restrictor variants have been tested and proven to comply with the relevant standards when tested on windows in conjunction with variable geometry friction stays produced by Securistyle. Should the products be used with other hinge types, it is the responsibility of the window fabricator or Systems Company to prove their suitability in use and compliance with relevant standards and/or legislation.

Product Codes

Stay Open Restrictor
Partcode Overall Length (mm) Pivot Arm Length (mm) Track Length (mm)
SOR150 410 150 313
SOR300 560 300 365
SOR400 660 400 455