From the Manufacturer
Leviton's 20 Amp Stage Pin Connectors are user-friendly, durable and safe. The ergonomic profile fits comfortably in your hand, making it much easier to assemble and disassemble. This results in reduced fatigue for both the assembler and the user who frequently connects and disconnects cable assemblies. The unique profile also increases safety, as it is less likely to get entangled with other equipment. The strain relief system offers 30% more gripping power than the competitors offering, reducing the chance of personal injury or property damage that results when cables are accidentally stripped from their connectors under load. The additional strain relief power also helps extend cable assembly life, saving you time and money over its lifetime. 20A-125 Volt, 2 Pole-3 Wire, Stage Pin, Male Plug Pressure Plate Terminals, Black.
20 Amp-12 Volt 2 pole-3 wire Stage pin male plug pressure plate terminals - Black