Industrial fasteners are a common component type to countless assemblies and applications, used to secure two or more objects together in a permanent or semi-permanent fashion. With semi-permanent fastener types, one may remove the fastener without breaking the component, allowing for maintenance and replacement to be carried out with ease. With permanent fasteners, on the other hand, one must break the joint itself. Fasteners are found in countless areas, ranging from the assembly of chairs to the formation of bridges and aircraft. Depending on the materials secured and operational requirements, there are various types of industrial fasteners that may be used, each with its unique characteristics and roles.
Screws are a fastener type that feature a helical external threading and a head on one side. With the use of a screwdriver, screws will often be driven into a component, boring and wedging their way into the material to create a secure hold. Coach screws are common heavy-duty types, often being used for securing timber, masonry, and concrete materials. Self drilling screws are fitted with a point, and they can be quickly drilled into metal and wood while acting as a drill bit. Drywall screws are another commonly used variation, featuring a small head and tip that may drive into drywall for a strong hold.
Bolts are often comparable to the screw due to their similar shape, though such industrial fasteners are paired with matching nuts to create a secure fit. To assemble two or more parts together, the headless end of the bolt is passed through a preformed hole, and the nut is twisted onto the other side to compress the assembly together. Bolts may come in numerous forms, common variations being carriage bolts, flange bolts, plow bolts, hex bolts, square-head bolts, and hanger bolts. Nuts may also vary in their type, some being more general application variations while others may provide improved locking capabilities for resisting loosening. If increased support is required for a particular fastening solution, one may also take advantage of washers which can distribute loads, act as a spacer, etc.
Rivets are a type of permanent fastener, often coming in the form of a smooth, cylindrical shaft with a head on one end. When passed through the preformed holes of components, a tool may be used to expand the tail-end of the fastener for the creation of a second head. Once the second head is established, the rivet will hold the assembly in place until the joint is broken. In general, commonly used rivet types include the lock bolt & collar, solid rivet, blind rivet, shear connector, and split rivet variation.
Anchors are components that may make the insertion of screws into a wall easier. When paired with a mating screw, the anchor will act as a weight support to a certain degree as determined by the component, fastener, and attachment surface. Anchors may be drilled into a wall with the use of a hammer drill, and they also may be paired with various bolts and fastener types to create a secure installation.
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