15AM/30AF Power Grip Dogbone – Marine 12″ 90M/F-Locking The Camco 15M/30F AMP Locking Adapter is a 12″ adapter cord with a threaded locking ring that creates a weatherproof connection. The durable, long-lasting STW cord has a 180 degree turn from male to female end. Features: 15 AMP locking standard male end with 30 AMP female end 12-” adapter Threaded locking ring creates a weatherproof connection Durable, long-lasting STW cord 180 degree turn from male to female end