Ham-Let One-Lok® Single Ferrule Compression FittingsThe Ham-Let OneLok fittings are a single ferrule version of the LetLok twin ferrule fittings  – designed for leak free use in high pressure systems. See catalogue for details on specifications, how to use and how to order.

ONE-LOK® is designed to give you leak-proof, secure connections that can withstand high pressure, vibration and vacuum applications. To this end, ONE-LOK® tube fittings are made up of three parts that are precision engineered and machined: body, ferrule and nut.

Ham-Let’s ONE-LOK® tube fitting is designed for use in control systems, process and instrumentation devices and in industrial equipment used in various industries. ONE-LOK® offers you a simple, high quality tube fitting with excellent performance and reliability.

Order Information


How to order OnelokIf you are unsure or need any advice please don’t hesitate to contact us.

Installation Instructions


OneLok-CatalogueOur full range of Ham-Let One-Lok® Single Ferrule Compression Fittings can be viewed here.