This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
ASF-Keystone® RS5-BEX knuckle helps to substantially reduce the slack on any freight train, says the company, even if only one RS5-BEX is paired with a conventional coupler. When coupled with F51AE knuckle, it reduces slack by 20 percent. The ASF-Keystone® RS5-BEX knuckle is designed to offer increased fatigue life, low-cost, easy application, and reduces the need for frequent and costly field replacement.