This is a A-RVT531 Rivet, Brazier Head, .250" X .531" PN: RVT531Main Description As Following : A-RVT531 Rivet; Brazier Head, .250" X .531" P.N: RVT531 Used W/ A&I Combine Poly Skid Plates.25 Pcs./Pack, Priced IndividuallyBody Diameter: .250"Body Length: .531"Head Diameter: .625"Material: Aluminum Found in Section & Models : Headers/Platforms/Feeder House > Grain Head Parts, John Deere COMBINE: SEVERAL Associated Items : New Also This is An Aftermarket Product And : Used W/ A&I Combine Poly Skid Plates. 25 Pcs./Pack, Priced Individually Body Diameter: .250" Body Length: .531" Head Diameter: .625" Material: Aluminum