Glossary

Anchor Point - The location to which a tie down is attached to a vehicle. If the anchor point is inadequate to support the force of the tie down system, then the load rating of the tie down will be limited to the strength of the anchor point. 

Breaking Strength - The tensile load in pounds or kilograms at which any parts of the synthetic web  tie down assembly fails. That also call maximum breaking strength, as shown as MBS.

Cargo - All articles or material carried by a vehicle, including those used in operations of the vehicle.

Chain Load Binder - A binder incorporating an over center locking action.

Cubic Capacity - The carrying capacity of a piece of equipment according to measurement in cubic feet.

Cyclic Test - A test to determine the cyclic life or acceptable cyclic rating of a tie down component or assembly.

Design Factor - The ratio of the breaking strength to the Working Load Limit (WLL) assigned to each synthetic web tie down assembly.

Direct Tie Down - A tie down that is intended to provide direct resistance to potential shift of an article 

Elongation - The length of stretch at a specific amount of pull divided by the original length multiplied by 100%.

Fabrication Efficiency - The synthetic web tie down assembly break strength as a percentage of the webbing strength prior to fabrication.

Heavy Duty Truck - Truck with  a gross vehicle weight generally in excess of 19,500 pounds (class 6-8). Other minimum weights are used by various laws or     government agencies. 

Indirect Tie Down - A tie down whose tension is intended to increase the pressure of an article or stack of articles or  the deck of the vehicle.

Keeper - A device used on a hook to  prevent the hook from inadvertently releasing.

Length - The distance between extreme end bearing points of the synthetic web tie down assembly, including the Fittings.

Proof Load Test - A non-destructive load test of a web tie down assembly to some multiple of the working limit of a web tie down assembly. 

Selvage - The woven or knitted edge of synthetic webbing, so formed to prevent raveling.

Sew/Stitch Pattern - The pattern of the stitches used to sew the webbing together.

Shoring Bar - A structural section placed transversely between the walls of a vehicle to prevent cargo from tipping or shifting.

Ultimate(Destructive) Test - A straight tensile load test of the synthetic web tie down assembly to failure. The failure load is the average breaking strength value of minimum of five(5) test samples. 

Winch - A device for tensioning a webbing or wire rope tie down that is fitted with means to lock the initial tension.

Working Load Limit - This is the maximum combined static and dynamic load in pounds or kilograms that shall be applied in direct tension to a straight and undamaged tie down assembly.