Fastener testing allows you to determine the mechanical properties of externally and internally threaded fasteners, washers, direct tension indicators, and rivets. Testing may consist of a machined specimen or a full-size product. Fastener testing is not applicable to all. The head design, shank thickness, and product length can determine if the testing is required of the product. Understanding the requirements for high tensile fasteners we are undertake all and complete testing requirements under mechanical testing. Mechanical testing is a process that is used to determine the mechanical properties of a material. It can be used to evaluate a material independent of its geometry and also at defined geometrical conditions.