same day shipping! for all orders placed before 2pm est!

same day shipping! for all orders placed before 2pm est!

Shopping Cart

Model 400XL-SS

Model 400XL-SS


Show all (7) product images Show fewer product images

  • Show all (7) product images Show fewer product images

    Model 400XL-SS

    Regular price $125.00




    Model 400XL-SS puck padlock with hidden shackle  (2 Medeco M3 keys included) 

    Machined from a solid bar of 303 Stainless Steel and fitted with a 6 pin pick resistant cylinder. 

    Medeco M3 High Security Cylinders feature UL437 Listed physical strength components like the triple locking technology for ultimate pick resistance and solid brass construction with strategically placed hardened inserts to thwart drilling attacks. 

    This model is a great upgrade for our trailer door locks. 400XL-SS version puck lock has a step-back and has an enlarged shackle pocket for door hasp. This product is meant to only be used with rear or side door HASP.  The larger rear pocket is needed for trailers door hasp due to the inconsistent gap that the trailer manufacturers hold. Model 400XL-SS puck lock is precision and works as an additional lock for your doors. If you are purchasing this with a puck lock you are able to select the keyed alike option so all your locks will have the same key. 

    • 303 Stainless Steel lock body
    • Torch resistant
    • 2 Medeco M3 keys per lock
    • Pick resistant
    • 3 lbs of Stainless Steel!

    Fine Print

    Puck Lock Dimension's

    • Body diameter : 73mm - 2-7/8"
    • Body height :38mm - 1-1/2"
    • Shackle opening depth clearance : 32mm - 1"
    • Shackle opening width : 44mm - 1-3/4"
    • Shackle opening height : 22mm - 7/8"
    • Distance pin from back of lock : 8.5mm -11/32"

      Maintenance Disclaimer: Please note preventative maintenance will be required in order to keep your lock cylinders functioning properly. This is especially likely in extreme weather climates. Graphited fluid will be needed to extend the life of your lock, by sealing out moisture and providing protection against freezing. Please inquire for additional information, we are always here to help! 

      *Please note, product pictures may not represent current model, as products are revised. 

    Lock Core

    Cobra 7 (Standard Aluminum)

    The Cobra 7 is a patented key system that was developed for the high-security needs in the vending industries. The COBRA tubular keyway is like no other with its 7 sided tubular keyway, this unique feature stops anyone from going to a hardware store to copy your key. This product offers a high-security solution for those that are looking for excellent exterior performance. COBRA 7 comes standard in all of our products at no additional cost.


    The Cobra 7 system is geared for the business owner looking for a great performing lock system at an affordable price with key control.

    Medeco M3 (Standard Stainless Steel)

    Medeco comes as one of the oldest High-security lock manufacturers in the USA. You will find this high-security lock in most prisons, government facilities, and even the White House! This particular lock is virtually impossible to pick due to its rotating pins that not only need to be at the right height but the right rotation in order to unlock.


    Medeco is typically needed for the high-security needs of companies that need key control or grandmaster key solutions. All parts are machined out of brass and hardened steel, for the combination of great exterior performance and high-security needs.



    Don't miss a thing

    Like our products? Sign up for news and updates.