This is a package of 6 Steel Pin Hinge Points from Robart. These hinges / are for heavy duty applications. The hinge will install by drilling a 1/8" hole / and inserting the hinge with a drop of glue. To make sure your hole is drilled / on center and straight use Robart"s Hinge Point Drill Jig (ROBR1319). Also / available in a package of 15 (ROBQ2508).