A fastener with a threaded hole of this kind is called a nut. To secure many parts together, nuts are nearly typically used in conjunction with a corresponding bolt. Combining the forces of the bolt’s minor stretching, the compression of the pieces to be held together, and the friction between the two partners’ threads (with some elastic deformation), the two partners are maintained together.
Numerous locking mechanisms may be used in situations where vibration or rotation could cause a nut to come undone, including lock washers, jam nuts, eccentric double nuts, specialized adhesive thread-locking fluid like Loctite, safety pins (split pins) or lockwire in conjunction with castellated nuts, nylon inserts (nyloc nut), and threads that have a slightly oval shape.
For identical reasons as the bolt head, the most popular shape nowadays is hexagonal: six sides provide a good granularity of angles for a tool to approach from (excellent in confined spaces), but more (and smaller) corners would be susceptible to being rounded off. The grip is ideal and it only requires a sixth of a spin to get the next side of the hexagon.
Polygons with more than six sides do not provide the necessary grip, whereas those with fewer than six sides take longer to rotate fully. For specific purposes, other specialty shapes are available, such as wingnuts for finger adjustment and captive nuts (such as cage nuts) for difficult-to-reach places.
When used with other fasteners, washers are disk-shaped parts that offer improved control over locking and friction. For usage in more specific applications, these fasteners may additionally have teeth, indentations, and other distinctive structural features. In general, they perform a number of tasks, such as covering the area beneath a fastener, keeping the fastener assembly from becoming loose, and distributing pressure more evenly during installation and use.
The table below shows the latest retail July 2022 prices of Nut and Washer, in Philippines Peso price per pieces including its standard size
Price and Standard Size of Nut and Washer per pc in the Philippines
UPDATED: Construction Material Prices for Nut and Washer in the Philippines (July 2022)
UPDATED: All Construction Prices are based on retail prices around hardware in Metro Manila
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