Can a Baldwin deadbolt be installed on a 1-3/8″ thick door?
Yes. If the product you have purchased has an item number starting with 8011, 8021, 8031, or 8041, installation on 1-3/8″ thick doors is possible with the use of an 8097 cylinder collar spacer. Use an 8297 cylinder collar spacer for products with an item number starting with any of the following numbers: 8231, 8232, 8241, or 8242. Single cylinder deadbolts require one spacer; double cylinder locks require two spacers.