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Defender 16mm Stack Friction Stays - Pairs

£3.89(Ex. VAT)
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The Defender Standard is a high performance friction hinge.


  • Improved weather sealing and draught proofing performance from extended enclosed end cap and asymmetrical vent arm form when tested to BS 6375-1
  • Lipped slider for enhanced smooth operation 
  • Easy friction adjustment without metal to metal contact 
  • Uniqure robust cam friction device eliminates any risk of friction screw misuse
  • Slot-hole-slot vent fixing configuration for ease of adjustment and guaranteed fixing into reinforcement on PVC-u window frames 
  • Enclosed end cap to prevent ingress debris and provide increased cavity tolerance 
  • 16mm Stack Height 
  • Side Hung Wide Opening for Egress - For easy clean see EDSE variant
  • Drilling jigs for all size available to order


  • Long and reliable working life tested to 30,000 cycles
  • Ferritic 430* as standard 
  • 10 Year Guarentee (details available upon request)

*Standard ferritic (was 430) to BS EN 10088-2