Cam lock fitting with special sizes obtainable by request. We are sure to provide you top of the line aluminum camlock couplings that are shipped out of our warehouse right away. Stainless Steel Camlock Fittings Purchase your stainless steel camlock fittings fast and easy with GFCS store. High quality stainless steel cam and groove couplings are offered in 12”-6” sizes, with other sizes available upon request. These stainless steel camlock couplings are low in cost, highly durable and are delivered in a fast and efficient manner.