10-Pack of NIB Heavy-Duty industrial grade L5-20 locking generator plugs.  UL Listed, CSA Approved.  Rated for 20 Amps, 125V.  Commonly referred to as a "Twist Lock" plug or "Locking Plug".  NEMA L5-20 plug mates w/ L5-20R connector or L5-20R receptacle.  In Stock, ships within 24 hours from Raleigh, NC.