Steer Hubcap standard 6 - hole with side plug. Measurements: Bolt circle: 5 1/2" , Bolt Size: 5/16", Number of Bolts: 6, Height: 1 13/16", Inside Depth: 1 1/16", Flange ID: 4 9/16", Flange OD: 6 3/16". Hubs are die-casted from 380 aluminum alloy Resists cracking, warping and breaking. Each hub cap is individually packaged, includes 6 hole gasket. Replaces Stemco 340-4095.