*** We no longer carry this part. *** IMPORTANT NOTE: Due to supply line shortages, shipping times may be delayed. Please contact us for estimated shipping times. Garage Door LiftMaster Automatic Lock. The 841LM is an automatic door lock that is used to keep intruders out of a garage. Performs in tandem with the opener, so it always locks and unlocks. Powered by MyQ® technology. A deadbolt lock reinforces the garage door automatically when closed. The sound of the lock engaging provides homeowners with the assurance the garage door has been secured. The Automatic Garage Door Lock 841LM is available and sold separately for LiftMaster Garage Door Opener models: WLED, 8550WLB, 8360WLB, 8580WLB, and 8587W The Automatic Lock is included in 8500W. IMPORTANT: Due to supply chain shortages we currently do not offer quantity discounts, and for some of our products we are limiting the quantities that may be purchased.
Huge inventory of torsion springs for same or next day shipping! Here you will find all you need in the most common sizes of 1 3/4," 2," 2 1/4," and 2 5/8" inside diameter springs. Larger 3 3/4" and 6" inside diameter commercial and industrial springs may require a day or two to ship. You'll also find TorqueMaster Springs, Extension Springs, Self-Storage door springs, steel rolling door springs and springs for one piece single panel doors.
Shelves packed with every part you need to fix your doors.
Please note. Shipping times and costs have changed. Normal transit times are currently not guaranteed, even on next day and second day shipments. Shipping prices on items over eight feet have more than tripled.