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Jam Bolt Lock for Gooseneck Coupler

Jam Bolt Lock for Gooseneck Coupler


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  • Show all (6) product images Show fewer product images

    Jam Bolt Lock for Gooseneck Coupler

    Regular price $90.00




    Having the best coupler locks is not an easy task. We pride ourselves on a glove like fit Proven Industries unique design prevents the removal of the inner tube of your gooseneck coupler to help deter towaway trailer theft!

    • Made in the USA
    • Custom designed Stainless Steel Proven Industries bolt included with lock
    • Aircraft-grade, machined billet aluminum puck lock body that is strong and corrosion resistant

    Fine Print

    Please look at trailer coupler lock index for exact fitting couplers, if you can not find your style trailer coupler pictured please email us a picture of your trailer coupler to insure you get the correct one.

    Please send all pictures to


    *Please note, product pictures may not represent current model, as products are revised.  All locks are now upgraded to 7 pin tubular lock at no additional cost.

    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.


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