Cavity Fit Restrictor

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The ultimate solution for resident safety.


  • Easy to fit with no routing
  • Compatible with standard duty hinges
  • Avaliable in 13mm, 16mm and 17mm cavity heights
  • Compatible with countersunk fixings
  • Can be used on windows without reinforcement
  • Austenitic* stainless steel for enhanced corrosion resistance and strength
  • 12 Year Guarantee (details avaliable upon request)

*Austenitic 304 stainless steel to BS EN 10088-2 Grade 1.4301 for enhanced corrosion resistance


  • Capable of complying with BS 6375-2 and EN 13126-5

Product Codes

Cavity Fit Restrictor
Part Code Description Cavity Size (Dim 'A') Pin Height (Dim 'B') Restrictor Length (Dim 'C') Box Quantity 
RC1L Cavity Restrictor LH 66mm - - 65.5mm  25
RC1R Cavity Restrictor RH 66mm - - 65.5mm  25
RC2L Cavity Restrictor LH 116mm - - 115.5mm  25
RC2R Cavity Restrictor RH 116mm - - 115.5mm  25
RC3L Cavity Restrictor LH 166mm - - 165.5mm  25
RC3R Cavity Restrictor RH 166mm - - 165.5mm  25
SC1 Locator Pin 13mm  13-14mm 9.5mm  - 25
SC2  Locator Pin 16mm 16-17mm 13.5mm  - 25
SC3  Locator Pin 17mm 17-18mm 14.5mm  - 25
SC4  Locator Pin 13mm 13-14mm 11.5mm  - 25