Halliday & Baillie Narrow Sliding Door

Sliding Door Lock is a mechanism designed to secure sliding doors, such as patio doors or glass doors, by preventing them from being easily opened or forced open.

Sliding Door Lock Function - to prevent unauthorized individuals from easily opening or gaining access to your home or property through the sliding doors also essential for child safety, especially in homes with young children. They can prevent children from opening the sliding doors and accessing potentially dangerous areas, such as pools or balconie.


  • 1 x HB 640 Series Narrow Lock Body
  • 2 x HB 668 Flush Pulls
  • HB 604 Fixing Kits (one set for HB 643) Strike and Dust Box Two spindle lengths (please specify door thickness for doors over 50mm)
  • Fasteners
  • Cylinder ordered separately for door thickness


  • Slim proportions of the HB640 Series Lock Key & Snib Both Sides sets make them ideal for narrow style timber and aluminium joinery
  • It is designed for use primarily in aluminium sliding doors but can also be used in timber doors with narrow stiles
  • Sliding the “snib” (a slide bLock Key & Snib Both Sides that acts like a traditional thumb turn) operates the bolt unless the cylinder is engaged
  • The key cylinder will Lock Key & Snib Both Sides the snib in place and does not activate the bolt


  • Material: Diecast zinc with brass and 316 stainless steel
  • Backset: 33mm
  • Minimum Door Thickness: 38mm
  • Flush Pull Dimension: 250mm x 36mm x 13mm
  • Available Finish:
    • Electro Black Ace
    • Electro Dark Bronze
    • Electro Flat White
    • Electro Medium Bronze
    • Satin Chrome 
SKU HB640_
Brand Halliday & Baillie