Trimax TS32 Dare to compare! TRIMAX, the leader in Receiver Locking Pins, has spent the last 10 years expanding and improving on the "ORIGINAL." The Patented Dual Lock Lug Design offers over 5,800 lbs. of head pull strength. A 1/4 turn of the rugged tube key locks & unlocks the strongest locking pin on the market. Don't settle for low quality knockoffs! The TS32 converts from a 1/2" to a 5/8" pin with a stainless steel sleeve and features a triple plated chrome finish and hardened steel. Provides instant security for your camper, boat or trailer by securing your vehicle trailer hitch. No internal springs to seize or brake. Hardened steel construction with a triple chrome plated finish. Knurling on lock heads adds style and grip and is machined from 100% solid forged steel. Double headed or "dog bone" style design. Width between heads (exposed pin length or gap space) is 2-5/8". A receiver pin is used to secure the receptacle part of a trailer hitch (attached to a vehicle) to inserts such as ball mounts, drawbars, accessory carriers or ornamental receiver plugs. The most common receiver pins are 1/2" and 5/8" in diameter. Class II receiver hitches have 1-1/4" receptacles and use 1/2" pins. Class III, IV and V receiver hitches have 2" receptacles and use 5/8" pins. TRIMAX makes the world's toughest locks. Through value added engineering design, TRIMAX is committed to product innovation that holds up to the highest quality standards. TRIMAX provides maximum security for marine, trailer and tow, RV, performance truck, power sports and bicycle applications. Tested. Tough. TRIMAX. TRIMAX offers a lifetime warranty on all of their products.