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In the mid 1940’s Cullen Crawford developed and patented the original flareless fitting (nut and double ferrule system), making it easier and more efficient to make tubing connections. Based on this innovation, he founded the Crawford Fittings Company, creating an industry for compression fittings.


Well-known throughout the fitting industry, Mr. Crawford founded Tylok International, Inc. in the late 1950’s. Tylok presently offers CBC-Lok double ferrule tube fittings and CS-Lok single ferrule tube fittings, both of which are interchangeable with industry standard designs. Tylok products adhere to the highest quality standards and all Tylok fittings are proudly manufactured in the USA.


At Tylok, our mission is total customer satisfaction with both products and services. Our knowledgeable staff is readily available to answer questions and respond to inquiries in a timely manner. We strive to develop new products that expand the Tylok brand and offer our customers a broad range of competitive products. If you have a unique product need, Tylok would like the opportunity to be your engineered solutions provider.

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