Trimax's TRA right angle receiver lock is the perfect lock for those tight space applications. Key entry is at a 90 degree angle to accommodate limited access receivers. It's 5/8" pin has a 3-1/2" working span to fit Class III, IV and V receivers. It is manufactured from high quality machine hardened chrome plated steel. The TRA3 features a water tight cap to seal out the dirt, requires only a 1/4 turn to lock or unlock and rugged dual locking design can't be false locked. includes 2 round keys. Test specifications exceed 32,000 pounds.