Fasteners are essential hardware components used to join or secure two or more objects together, playing a critical role in a wide range of applications across various industries, including automotive, construction, and manufacturing. Common types of fasteners include screws, bolts, nuts, washers, and rivets, each designed to provide specific levels of strength and durability. The choice of fastener often depends on factors such as the materials being joined, the required load-bearing capacity, and the environmental conditions to which the assembly will be exposed. Fasteners can be made from various materials, including metals, plastics, and composites, allowing for versatility in both indoor and outdoor settings. Understanding the properties and appropriate applications of different fasteners is crucial for ensuring structural integrity and longevity in any project, making them fundamental components in engineering and design.