At a Glance:

  • The GD400 will fit inside or outside most metal, glass fibre, plastic or wooden garage doors.
  • Comes complete with angle bracket back plate and ground tube, all fasteners and Bulldog Super Lock Bolt.


For your Peace of Mind

  • 5 Year Guarantee (via registration)
  • Made in Great Britain
  • Supplied with 2 keys and eligible for Bulldog Security Key Registration Service


Fitting Video



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Bulldog GD400 Bulldog GD400 Garage / Roller Shutter Door Lock

  • Brand: Bulldog
  • Product Code: GD400
  • Availability: In Stock
  • £97.74

  • Ex Tax: £81.45

Available Options


Tags: bulldog, roller, shutter, garage, secure, lift, lock, heavy, duty, gd400