ID 89mm, THK 8mm, MILD, UNG706

2 Bolt Flange Plates - Inside diameter 89(+0.5/-0)mm (3-1/2"), Bolt-hole centre-to-centre distance 106mm, Bolt-hole diameter 12mm, Total length 134mm, Total width 106mm, Thickness 8mm, Material MILD STEEL, Gasket UNG706