HD Restrictor Stays

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Fixed restrictor stay for use with Sterling and Storm Balanced heavy duty hinges.


  • Can be used on top hung and side hung vents
  • Non handed product to reduce stock inventory
  • Easy to fit with 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

HD Restrictor Stays
Partcode Restricts the opening to (mm)
SR4 100 or less
SR6 80 to 200
SR8 100 to 300
SR16BAC 300 to 750