PTO Link™ System – Safety Bolt – SPARE RECOMMENDED


The PTO Link™ Safety Bolt, also known as the Quick-Release Detent Clevis Pin, is essentially a cotterless Clevis Pin that features a ball detent that depresses and springs up to hold the Clevis Pin into place. This one-piece locking clevis pin is fast and secure. It also acts as an alignment pin for the two mating plates of the PTO Link™ system and further secures the plates (much like a deadbolt lock) to withstand most high torque scenarios or instances wherein reverse torque on the PTO shaft could be experienced (e.g., while using flex-wing mowers, heavy-duty shredders, tillers, augers, stump grinders, PTO auto-brakes or reverse safety switches, etc.). Since these high torque or reverse torque scenarios on the PTO are often unforeseen, it is therefore required always to install the safety bolt while using the PTO Link™ system.

The PTO Link™ system already comes with a replaceable spring-loaded shear/locking pin affixed onto the tractor (female) plate that engages with the implement (male) plate for the initial connection. The safety bolt provides the following benefits:

  1. Snugly aligns and secures the male and female plates of the PTO Link™ system together to minimize vibration and wear to your driveline;
  2. Balances and absorbs excess torque across the entire plate diameter of the PTO Link™ system, providing added strength to your PTO connection during high torque or reverse torque scenarios.
  3. Provides enhanced safety, protection, and durability to your PTO Link™ system.

The Safety Bolt features a Grade 8 bolt and stainless steel, spring-loaded ball detent that functions as an easy insertion and quick-release mechanism. The ball detent retracts when inserted, springs back up when installed through the joined plates, and locks into place!

Installation instructions: Prior to installing the Safety Bolt, first install the PTO Link™ plates separately on the tractor’s PTO (female plate) and implement shaft receiver (male plate). Next, couple the male and female plates together, aligning the studs of the male plate into the openings of the female plate. Then slightly rotate the male plate counter-clockwise (or the female plate clockwise) until the two connected plates are fully mated, and the stainless steel spring-loaded shear/locking pin has fully engaged. Now, note the aligned 1⁄2” opening through both plates of the fully mated PTO Link™ system, positioned across the plate, opposite the stainless steel spring-loaded shear/locking pin.

To install the safety bolt:

  1. Place the tip of the pin into the 1⁄2” opening on the tractor plate.
  2. With the head of the safety bolt always facing the tractor, push the pin through the aligned 1⁄2” openings on both plates. The ball detent of the safety bolt (now emerging from the implement side plate) will release its internal spring and secure both plates together.

To uninstall the safety bolt:

  1. Push the end of the safety bolt toward the tractor.
  2. Pull the head of the emerging safety bolt through the plates from the tractor side, releasing the pin from the mated plates. Once accustomed to the safety bolt, your process to reinstall and uninstall will take only a few seconds.
  3. When the PTO Link™ system is not in use, affix the safety bolt through the 1⁄2” opening on the tractor plate for convenient storage.

Additional information

Weight0.09375 lbs
Dimensions1.635 × 0.63 × 0.63 in