Week 7 Flashcards
These are devices used to join or assemble parts together
Sheetmetal fasteners
Materials used for manufacturing of fasteners
Carbon steel
Alloy steel
Stainless steel
Inconel stainless steel
Titanium
Aluminum
This is the most commonly used material for fasteners
Carbon steel
This is mostly used in aircraft application fasteners
Titanium
This is used in areas of very light loads and application requiring reduction in weight
Aluminum
Various types of coating for fasteners area
Cadmium plating
Zinc plating
Chromium plating
Black oxidizing
Nickel plating
Is a type of fastener, usually made from metal, that commonly comprises a head at one end, a chamfer at the other, and a shaft characterized by an external helical ridge known as “thread”
Bolt
A perforated block usually of metal that has an internal screw thread and is used on a bolt or screw or for tightening or holding something
Nut
A nail-shaped or rod-shaped piece with a spiral groove and a slotted or recessed head designed to be inserted into material by rotating and used for fastening pieces of solid material together
Screw
Is a thin plate (typically disk-shaped) with a hole (typically in the middle) that is normally used to distribute the load of a thread fastener, such as bolt or nut
Washer
Are thin, circular, metal components that can be either stamped from a sheet or coiled from wire
Retaining rings
Are heavy duty anchor for fixing objects to masonry surfaces
Concrete anchors
Are designed to be placed into existing holes to provide a threaded receptacle so that screws, bolts or other fixings can be installed
Inserts
A short metal pin or bolt for holding together two plates of metal, its headless end being beaten out or pressed down when in place
Rivets
It is a process of joining permanently two pieces of sheet metal with rivets
Riveting
What do you call the special rivets
Tinners’ rivets
Riveting involves 3 operations
Drawing
Upsetting
Heading
Types of rivets
POP rivets (open end)
Closed end pop rivets (sealed)
Countersunk Pop rivets
Multi-grip rivets
Structural rivets
It is also known blind rivets, are used to connect two pieces of material in quick, efficient way
Pop rivets
These are tubular comprised of a hat and mandrel
Pop rivet
It is a closed end which creates a watertight deal
Closed end pop rivets
The hat of the rivet is almost inverted, with a 120° countersink in the integrated washer
Countersunk pop rivet
Are often used to substitute conventional rivets where the thickness of installation materials can vary
Multi-grip rivets
Are used to create a stronger assembly than standard stainless steel pop rivets
Structural rivets
They generate an intense amount of force and require a different tool to apply than a regular rivet
Structural rivet
Other name for rivet gun
Pneumatic hammer
Is a type of tool used to drive rivets
Rivet gun
Is a mechanical fastener that is usually used with a nut for connecting two or more parts
Bolt
These are often used to prevent loosening and crushing
Washer
Types of bolt
Anchor bolt
Carriage bolt
Hanger bolt
Hex bolt
J bolt
Bolt designed to allow objects to be attached to concrete
Anchor bolt
Bolt with a smooth rounded head and a square section to prevent turning followed with a threaded section for a nut
Carriage bolt
Bolt that has no head, machine threaded body followed by a wood threaded screw tip
Hanger bolt
Allow nuts to be attached to what is really a screw
Hanger bolt
Bolt with a hexagonal head and threaded body
Hex bolt
(True or false)
In J bolt, only the curved section is threaded for a nut to be attached
False (non-curved section)
Types of screws
Self-drilling screws
Sheet metal screws
Hex lag screws
Deck screws
Self drilling screws have a sheet metal thread with a driller cutting to point ___ to ___ gauge metals
20 to 14
Have sharp cutting threads that cut into sheet metal, plastic or wood
Sheet metal screws (SMS)
They have fully threaded shank and sometimes have a notched point at the tip to aid in chip removal during thread cutting
Sheet metal screws
These are large wood screws
Hex lag bolts also called lag bolts
Aid in chip removal during thread cutting which allow for an easy installation in wood and composite materials
Deck screw
Is a tool, manual, or powered for screwing and unscrewing screws
Screw driver
Types of nut
Cap nuts
Coupling nuts
Hex finish nuts
Heavy hex nuts
Hex machine nuts
The nut has a domed top to prevent contact with the external thread
Cap nut (acorn nut))
Is a threaded fastener used for joining two male threads, most commonly threaded rod
Coupling nuts
Are used for fastening hex cap screw, socket cap screw or bolt
Hex finish nuts
Hex shaped, internally threaded, and driven with a wrench
Heavy hex nuts
