Cosmo Corporation is a leading supplier of coil bobbins, knobs, and precision engineered plastic components to the global electrical and electronics industries. Request Part Samples Online Coil Bobbin Catalog Request Price Quotation Quality Assurance Manual --- Select Product Type --- Cosmo Coil Bobbins Cosmo Knobs Since 1945 our in-house tooling facilities have built more than 15,000 custom molding tools. Our experience means it's done right the first time. 3D drawings of Cosmo standard catalog parts now available online © Cosmo Corporation 1995 - 2021 Legal Information Phone: 1-440-498-7500 Fax: 1-440-498-7515