The HYTORC Backup Washer makes your bolting jobs safer and more efficient. Its reaction-free design eliminates the need for a reaction arm and backup wrench, reducing injury risks with no pinch points. The double-sided knurls ensure bolt integrity under vibration for secure results. Customizable to your specific needs, it easily handles temperature concerns, corrosion resistance, and specialized coatings, ensuring optimal performance in any situation. The Backup Washer complies with the ASTM F3394/F3394M Standard.