“Bolts and screws” are types of fasteners used to hold materials together in construction, machinery, and various other applications. While they are often used interchangeably, bolts and screws have distinct features and purposes.
Bolts
Bolts are fasteners with external threading that usually require a nut to secure two or more parts together. They are typically inserted into pre-drilled holes and are tightened by turning the nut rather than the bolt itself.
– Key Features:
– Have a uniform cylindrical shape with external threads.
– Often paired with washers and nuts.
– Provide strong, secure connections.
– Used where high strength is required.
– Common Applications:
– Structural connections in construction (bridges, buildings).
– Automotive and machinery assembly.
– Heavy-duty furniture and equipment.
Screws
Screws are fasteners with helical threads that can create their own thread in the material being fastened. They are tightened by turning the screw itself, which draws the materials together.
– Key Features:
– Typically pointed at the end for self-threading into materials.
– Can be used without nuts.
– Available in various head shapes (flat, round, Phillips, etc.).
– Provide strong holding power, especially in wood, plastic, and metal.
– Common Applications:
– Woodworking and furniture assembly.
– Securing metal, plastic, and drywall.
– Electronic devices and household appliances.
Differences:
– “Bolts” typically need a nut and are used for high-strength, heavy-duty applications.
– “Screws” are self-threading and used for direct fastening into materials without needing a nut.
Both bolts and screws are essential components in construction, manufacturing, and everyday repairs, providing reliable and adjustable fastening solutions.
