Established in 1936, Punch-Lok is one of the leading manufacturers of pre-formed, punch-style and open-ended hose clamps. The company offers products in a wide variety of sizes for industrial hoses. Its punch-style hose clamps are the fastest way to attach fittings to hoses. Additionally, the company provides automatic clamping machines to its customers. Punch-Lok offers a wide range of products, such as buckles, clips, locks and brackets. The company provides products of various materials that include aluminum, brass, stainless steel, nylon, polypropylene and ductile iron. It is located in Enid, Okla., and is affiliated with PT Coupling.