True or False: The correct Hi-Lok selection requires grip measurement.

The correct answer is true because selecting the appropriate Hi-Lok fastener necessitates a precise grip measurement to ensure proper fit and function in aerospace applications. Grip measurement refers to the total thickness of the materials being joined, which is critical in determining the length of the Hi-Lok required for effective fastening. If the grip size is not correctly measured and matched with the appropriate Hi-Lok, it may lead to inadequate fastening, which could compromise the structural integrity of the assembly. Therefore, understanding and accurately measuring the grip is essential to selecting the right Hi-Lok for any given assembly task.