Small Hinges HNG-27 Plain Steel Flap Hinges Sold in Pairs with Free USA shipping.  This is an old stock hinge that we recovered from a case factory; we believe they were made in the 1940s.  When opened and laid flat the overall dimensions of this hinge are 15/16″ wide by 2-1/8″ long.  HNG-27 are sold in pairs, two complete hinges in each pack, for $6, with free USA shipping.