Kevlok Tie-Downs & Tie-Down Straps

This is dependent on the type of hardware that is selected. Generally speaking, our sewing machines need a minimum of 2-1/2″ between hardware fittings for the “foot” of the machine to sit flat on the webbing. We measure our straps from the center of the pivot point on the buckle to the center of the fastening point on the end of the strap.

As an example, one of our most commonly purchased over-center buckles, the K413, has a length of 1.25″ from the pivot point to the tip of the buckle. Our K480 anchor plate has a length of 1.25″ from the center of the bolt hole to the edge of the buckle. Therefore, the shortest fixed end that we can make using a K413 over-center buckle and a K480 anchor plate is 1.25″ + 1.25″ + 2.50″ = 5.00″. As you can see, if we added a quick disconnect, say a K460, this will add the full length of the K460, or + 1.36″, making the shortest fixed end of a K413 with a K480 and a K460 equal to 6.36″.

This is largely determined by the test method used to evaluate the stretch. In general, the nylon webbing will stretch between 20% and 30% and polyester webbing will stretch between 15% and 25%.

These are general figures and depend not only on the test method but also on the environment: temperature, humidity, age, and other adverse conditions. Please contact our Engineering Department to inquire about your specific application.