3R35 / 3R35XRKS - 5 Detainer Deadlocking Latch (RKS)

10_Year_Guarantee.jpg RKS_Logo2.jpg


  • For timber door hinged on the left or the right where slam action is required
  • Keys are suitable for use on doors up to 50mm thick
  • Detainer style locks provide a higher number of key combinations than lever locks
  • 3R35X is suitable for use on escape doors
  • For use with handles ref 3R35F
  • Handles can be secured from both sides
  • When closed, the door is secured by an automatic deadlocking action on the latch
  • A hold back snib can be used to keep the latch in the withdrawn position
  • 3R35X, as the 3R35 but the inside handle cannot be locked allowing free egress at all times


  • Force resistant, anti-pick and anti-saw security features
  • Available with square forend and striking plate
  • 10mm latch bolt throw 
  • 3R35 only can be supplied on patented RKS key section to prevent illicit copying
  • Case Size: 80mm
  • Backset: 50mm
  • Centres:  56mm
  • Case: Silver powder coated
  • Forend: Stainless steel or brass
  • Box Strike Assembly: Painted to suit forend
  • Latch Bolt: Sintered iron
  • Follower: Sintered iron
  • Locks are handed - please state required handing when ordering
  • Keying Groups: Standard differ, to pass or masterkeyable to other detainer locks
  • Keys supplied: Standard differ supplied with 2 keys.  For locks to pass or masterkeyed please specify the number of keys required
  • Key Blank Number:
    • B-K521-S (Standard)
    • B-K748 (RKS)
    • B-DET-STD (Standard Differ)
  • Cut Key Number:
    • B-DET-SK-1.500 (Servant Key)
    • B-DET-MK-1.500 (Master Key)
  • Rebate Kit: B-3R35R (13mm, left or right handed)
  • Available in SC and PL finishes


  • SC - Satin Chrome finish
  • PL - Polished Brass finish