Yale Assure Lock 2 Touch: Keyed and Key-Free Fit Checks
Compare the YRD420-F and YRD450-F preparation guides, including Yale's extra-entry warning for the key-free model.
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Yale lists separate Assure Lock 2 Touch installation guides for the keyed YRD420-F and key-free YRD450-F. Identify the model before using a template, and keep the key-free model’s entry warning attached to that variant.
Match the model and preparation guide
Both manuals show a 2-1/8-inch face bore, a 1-inch edge bore, and 2-3/8- or 2-3/4-inch backset options. Use the marking template and full installation guide for the exact variant. These shared measurements do not establish that an existing strike, frame, door material, or other condition is suitable.
Both manuals show a 2-1/8 in (54 mm) face bore, a 1 in (25 mm) edge bore, and either a 2-3/8 in (60 mm) or 2-3/4 in (70 mm) backset. This schematic is not to scale; use the marking template and complete guide for the exact variant.
| Model | Configuration | Preparation source | Additional point |
|---|---|---|---|
| YRD420-F | Keyed | Keyed manual | Confirm the exact door against this guide. |
| YRD450-F | Key-free | Key-free manual | Yale says to install key-free locks only in homes with more than one point of entry. |
That warning is specific to the key-free YRD450-F. Consider the household’s independent entry routes before choosing it. Do not assume the keyed model’s manual or keyway applies to the key-free version.
Verify the complete door and setup
Check the current instructions for door thickness, edge condition, handing, strike alignment, and any preparation not shown in the short comparison above. Confirm smooth operation before relying on the lock. The manuals do not establish that either variant fits every door with the listed bore and backset.
For other Yale products and regional kits, see the Yale model and market checks. For a particular door, follow the pairwise fit method.
Reference material