Trimax T6 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 T6 is a watercraft bow ring lock with a 1/2" diameter pin that fits bow ring locks with a 5-1/2" span. Patented dual lug lock design. Full length pin made of solid forged machined steel that cannot be pulled out. No internal springs to seize up or brake. Triple chrome plated finish. Knurling on lock heads adds style and grip. Stainless steel internal components. Double headed or "dog bone" style design. Width between heads (exposed pin length or gap space) is 5-1/2". 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..