Types of Nuts Cap Nuts The cap nut, also known as the acorn nut, gets its name from its shape. The nut has a domed top to prevent contact with the external thread.
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November Learn how and when to remove this template message Typical fasteners US quarter shown for scale A fastener US English or fastening UK English  is a hardware device that mechanically joins or affixes two or more objects together.
In general, fasteners are used to create non-permanent joints; that is, joints that can be removed or dismantled without damaging the joining components. Steel fasteners are usually made of stainless steelcarbon steelor alloy steel.
Other alternative methods of joining materials include: Force may also be used, such as with magnetsvacuum like suction cupsor even friction like sticky pads. Some types of woodworking joints make use of separate internal reinforcements, such as dowels or biscuitswhich in a sense can be considered fasteners within the scope of the joint system, although on their own they are not general purpose fasteners.
Furniture supplied in flat-pack form often uses cam dowels locked by cam locksalso known as conformat fasteners. Fasteners can also be used to close a container such as a bag, a box, or an envelope; or they may involve keeping together the sides of an opening of flexible material, attaching a lid to a container, etc.
There are also special-purpose closing devices, e. Items like a ropestring, wirecablechainor plastic wrap may be used to mechanically join objects; but are not generally categorized as fasteners because they have additional common uses.
Likewise, hinges and springs may join objects together, but are ordinarily not considered fasteners because their primary purpose is to allow articulation rather than rigid affixment.A fastener is a device that holds two or more objects together.
A fastener can be a bolt and nut, a screw, a rivet, or even a staple. However, the majority of fasteners used in industry are threaded fasteners. Pipe fittings are widely demanded for any piping and plumbing systems used in industrial and commercial applications.
Fittings allow pipes to be joined or installed in the appropriate place and terminated or closed where necessary. General. Fasteners are identified by four or five attributes; Type, Material, Diameter, Length, and Thread Pitch or Count (machine thread fasteners only).
This page describes what these attributes represent. Information on how they are written can be found on . There are two basic methods for pro-ducing fasteners—machining and cold heading—both of which are applicable to stainless steels.
MACHINING is the oldest method of fastener production, and it . Dzus (pronounced "Zeus") screws are similar to Hi-Torque screws, and are typically used in the aviation industry to secure inspection panels and other access doors that need to be opened and closed frequently, but are too small or thin to support other types .
A fastener (US English) or fastening (UK English) is a hardware device that mechanically joins or affixes two or more objects together. In general, fasteners are used to create non-permanent joints; that is, joints that can be removed or dismantled without damaging the joining components. Welding is an example of creating permanent joints.
Steel fasteners are usually made of stainless steel.