MASTER LOCK BARBELL RECEIVER AND COUPLER LATCH LOCKS
Dia/Shackle: 9/32" x 3-1/2"
6503211 is a receiver lock that fits both 5/8" and 1/2" applications with it's removable sleeve. Also available in stainless steel as the number 6503212. A latch lock for standard couplers is the number 6503210. For surge-brake and UFP couplers number 6503209.