HD72DNL - Heavy Duty Euro Profile Deadlocking Nightlatch

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For use in high frequency areas used by public or others with little incentive to exercise care and with a high chance of misuse.

  • European DIN style casing with 72mm centres and 60mm backset for use with Euro-profile cylinders
  • Heavily sprung latch follower allows use of heavy unsprung door furniture (weighing up to 930g per pair)
  • Positive 1° follower angle
  • Durable latch follower technology successfully cycle tested to 3.5 million operations
  • Quick reversible latch allows easy on-site handing
  • Cylinder to latch functionality
  • Spindle grip feature reduces rattle
  • Two piece forend provides clean aesthetics and easy maintenance
  • Adjustable strike to reduce door rattle
  • Splinter guard provides a professional installation


Deadlocking Nighlatch function from the inside:

  • Latch bolt withdrawn by either the lever handle or the cylinder key/turn 
  • When the door closes and the snib comes into contact with the strike the latch is deadlocked

Deadlocking Nightlatch function from the outside:

  • Latch bolt withdrawn by the cylinder key to unlock the door
  • When the door closes and the snib comes into contact with the strike the latch is deadlocked and a key must be used for re-entry
  • NOTE: No lever handles are used on the outside. Use a pull handle or cylinder pull

Furniture: For use with sprung or unsprung door furniture
Angle of lever operation: 35°
Cylinders: Euro profile, single, double or cylinder and thumbturn
Fixings: Accepts 38mm centre bolt through door furniture
Handing: Easily reversible for left and right hand
Backset: 60mm
Follower: 8mm
Lockcase depth: 90mm
Height: 165mm
Lockcase Thickness: 16mm
Centre Distance: 72mm
Inner Forend: Radius
Outer forend/Strike: Choice of Radius or square
Forend size: 235mm (L) x 24mm (W)
Deadbolt throw: NA
Latch material: Steel chrome plated
Case material: Heavy duty mild steel enclosed case. Silver finish
Faceplate & Strike material: Grade 304 Satin Stainless Steel
Splinter box: Black plastic


Matching satin stainless steel forend and strikeas standard. Product can also be supplied in:
  • Polished chrome (CH)
  • Polished brass (PB)
  • Satin brass (SB)
  • Antique brass (AB)


Tested to BS EN12209

  • Tested to EN 1634-1 2014 on 30 and 60 minute timber fire doors and 240 minute metal fire doors
  • For 30 and 60 min fire doors use 1mm interdens behind the strike plate and 2mm interdens around the lockcase

Certifire approved: CF5543

BS EN 12209 Classification: 3X810G1BB20

BS EN 12209 CE Cert No: 0086-CPR-658456

15 year guarantee: The performance of the HD72 is supported by a 15 year guarantee
Equality Act: The dimensions of the lock case assist in fulfilling requirements and duties required under the Equality Act by satisfying the recommendations of BS 8300 2009 and Approved Document M 2015 (2016)

Intumescent kit JHD72-IK suitable for 30 and 60 minute timber fire doors are available to order as a separate item

Ordering Options