Fasteners join two or more objects mechanically. Fasteners can be temporary or permanent. They can be used on a fixed item to keep it in place or on flexible items like a hinge if movement is need. An example of each could be a lid on a crate. If it is fastened to stay closed it could be permanent, the same crate could have a hinge on the lid to allow it to be opened and closed. Either way fasteners can be removed to allow for the item to be dismantled.
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What are different types of Fasteners?
Different types of fasteners are nuts and bolts or screws. Nuts and bolts join two or more items together using threads on the nuts and bolts that match and have the ability to tighten. Nuts and bolts use washers and lock washers to give strength to the area being compressed. A lock washer keeps the nut from loosening and coming off the bolt. Nuts and bolts come in all sizes shapes and styles for many different applications. Screws are also a fastener but do not require a nut. Screws have threads that when turned bite into the items being connected. Screws are typically used with softer items (wood, plastic and aluminum etc.) where nuts and Bolts can develop more strength and pressure. Fasteners can be made of almost any material. Typical fasteners would be made of a metal however if corrosive elements are involved the fastener may be made from stainless steel or even plastic or some other item that is not adversely effected by the corrosive element.
What is a Non-threaded Fastener?
A fastener that is used without threads is a non-threaded fastener. Examples of this are pins, rivets, retaining rings, key stock, and woodruff keys. Non-threaded fasteners use pressure to join the two objects. Hook and loop is another example of a non-threaded fastener. Hook and loop is a cloth or plastic material that adheres to a male and female side.
What are the Mechanical Properties of a Fastener?
The mechanical properties of a finished cap screw or fastener are covered in the Society of Automotive Engineers (SAE) J429. This covers materials, methods of manufacturing, properties and testing requirements. Grade 2 is lower strength fasteners made of low carbon steel. Grade 5 is medium strength fasteners that achieve their strength from a heat treatment. Grade 8 is the highest strength in the standard inch series and made from alloy steels. Standard mechanical tests are performed in accredited laboratories to ensure proper properties are achieved.
Industrial Supplies - Industrial Sales>
These are just some of the thousands of industrial supplies that Hi-Line salesmen carry on their trucks. Every Hi-Line representative manages a territory, similar to a route sales system, where quality electrical and maintenance supplies are delivered directly to your bins. If you love industrial parts, working with people, and being your own boss, then contact Hi-Line at industrialsales@hi-line.com for a rewarding career in industrial sales.