Tying down your important cargo with our 1" Cam Buckle with NAS Number is a very easy operation that only takes you a few minutes. Simply thread the strap through the cam, pull the strap until you've reached exactly the right amount of tension, and then release the cam as it bites down onto the webbing and securely holds it in place for a reliable tie down. This sturdy diecast zinc alloys and carbon steel 1" Cam Buckle is National Aerospace Standard compliant with an NAS Number of NAS1211F10.