Description: Reliable low and high pressure sealing. High and low temperature capabilities. Bolt torque is reduced with no loss of tightening load. The Seal comprises a metal washer and an elastomeric ring bonded inside the diameter. The metal washer prevents over-compression and limits deformation of the elastomeric ring. Specification: Material: Copper Size: Approx 13*7*2.2mm Size: M6/M8/M10/M12/M14/M16 Package Includes: 20 Pieces M6 Seal Gaskets 20 Pieces M8 Seal Gaskets 15 Pieces M10 Seal Gaskets 15 Pieces M12 Seal Gaskets 20 Pieces M14 Seal Gaskets 10 Pieces M16 Seal Gaskets