The Russel Transmission Fittings are designed to connect braided stainless transmission cooler hose to your transmission case the easy way. Russell's fittings are machined from a low carbon steel to provide the material strength required for the enlarged inside diameter which increases flow capacity. The straight threads (NPSM) eliminate the risk of cracking your transmission case as compared to using NPT (tapered thread) fittings. They are available in -06 AN or -08 AN and include sealing washers.