BOLT Introduces Fifth-Wheel King Pin Locking System


New from BOLT Locks – a fifth-wheel king pin locking system. This product works with BOLT’s 5/8-inch receiver lock to prevent fifth-wheel trailer theft, and features a hardened steel collar. See more details below.

Official Release:

BOLT Locks is unveiling a new Fifth-wheel King Pin Locking System, once again expanding its popular line of heavy-duty, weather-resistant “Breakthrough One Key Lock Technology” offerings.  The BOLT fifth-wheel King Pin Locking System works in conjunction with BOLT’s 5/8” Receiver Lock, which is sold separately, to prevent fifth-wheel trailer theft.

BOLT’s King Pin Locking System features a U-shaped black powder coated hardened steel collar that wraps around the Fifth-wheel King Pin and attaches to a BOLT 5/8” Receiver Lock to securely hold the fifth-wheel in place in the bed of the pickup. Together, the system acts as a visible theft deterrent, allowing the trailer to be secured with the owner’s truck key.  The new BOLT King Pin Locking System is ideal for protecting camping trailers, construction trailers and horse trailers.

BOLT’s 5/8” Receiver Lock is a stainless steel pin featuring a double ball bearing locking mechanism with a weather-resistant lock shutter to keep out dirt and moisture. Once the vehicle ignition key is inserted into the lock cylinder, spring-loaded plate tumblers move up and down until they are matched exactly to that key. The first time the key is rotated, the cylinder is uniquely coded to that key. Using just your ignition key —  no matter how many BOLT locks are in play — helps reduce key ring clutter, thus reducing confusion on the road, and streamlining your towing experience.

“The Fifth-wheel King Pin Locking System was developed to expand the uses for our very popular  5/8” Receiver Lock,” said Erika Garcia, BOLT’s National Sales Manager. “Adding our new King Pin Locking System to our 5/8” Receiver Lock enables users to secure anything that is being towed with a fifth-wheel type receiver, ramping up security for either work-related or recreational towing applications.”

BOLT Locks’ growing line of products includes cable locks, padlocks, receiver locks, coupler pin locks, toolbox latch retro-fit kits, and Jeep J-mount, spare tire and hood locks. BOLT Locks are available for Ford, GM, Chrysler, Nissan, Toyota and Jeep vehicles.


  • U-shaped, powdercoated, hardened steel collar
  • Works with BOLT’s 5/8-inch receiver to prevent fifth-wheel trailer theft
  • Double ball bearing locking mechanism with weather-resistant lock shutter

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David Chick

David Chick comes to us ready for adventure. With passions that span clean and fast Corvettes all the way to down and dirty off-road vehicles (just ask him about his dream Jurassic Park Explorer), David's eclectic tastes lend well to his multiple automotive writing passions.
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