Insulation washer is one of our main products for tightening on the heat-producing components and for insulating between metal sheet .Especially ,it is used on screws for insulating purpose ,which is combined with the heat -eliminating pad when operated .

Typical specification:TO-220;TO-220A;TO-220B;TO-220C;TO-220D;TO-3

Notes:as for the different specifications are available at customer's request.