HB 642 Sliding Door Lock

By Halliday & Baillie

Halliday + Baillie

Select your finish to view price:

Halliday+Baillie HB 642 Narrow Backset Sliding Door Lock 

The Halliday Baillie HB 642 sliding door lock is the same as the HB 640 except it is keyed on the inside only, for use where access from the exterior is not required when doors are locked. Sliding the snib on the inside operates the bolt unless the cylinder is engaged. The cylinder locks the snib; the key does not operate the bolt. The HB 642 requires a half profile cylinder.(sold separately)

The HB 642 has a very narrow backset of 33mm (1.30") and a lock body depth of 45mm (1.77"). It is designed for use in aluminum or timber sliding doors with narrow stiles (min. 2.00”).

Made in New Zealand.


Minimum Door Thickness: 38mm (1.50”)

Backset: 33mm (1.30”)

Flush Pulls: 250mm (9.80”) x 36mm (1.41”) x 14mm (.55”)

Material: Diecast zinc with brass and 316 stainless steel


  • SC: Satin Chrome
  • BC: Brushed Chrome
  • PC: Polished Chrome
  • BN: Brushed Nickel
  • PN: Polished Nickel

NOTE : We strive to keep a healthy stock in the above finishes but it is possible we may not have your quantity available to ship right away. If you need it fast, we recommend you call us to confirm a lead time. Your order will ship out as soon as your hardware is available by your chosen shipping method. 

(expect approx. 10 week lead time on these finishes) : 
  • EDB: Electro Dark Bronze (by special order only)
  • KC: Black Chrome (by special order only)
  • WT: Powder-Coated White (by special order only)
  • BLK : Powder-Coated Black (by special order only)

    Package Includes:

    • HB 640 Narrow Backset Lock Body
    • 2 Flush Pulls w/ HB 604 Timber Fixing Kits
    • Strike and Dust Box
    • Spindle (please specify door thickness)
    • Fasteners

    More Info:

    Full Profile Cylinder sold separately. Call us to discuss your specific situation.

    For 1⅜” thick doors, refer to HB 690/35

    LEAD TIME: Please be aware that due to the current popularity of the HB 642, we suggest you call to check on current stock levels if you require this product quickly. We will do our best to fulfill your order as soon as possible. +1-888-636-1627

    Downloads : HB 642 Spec Sheet


    HB690 Installation Video