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Fastener Acronyms

Fastener Acronyms

Fastener Acronyms can be confusing but they are a constant in the fastener world. At Albany County Fasteners we want to make your experience as simple as possible. To help you better find what you need, we have compiled a list of commonly used acronyms, what they stand for and what they mean.

Machine screws are mostly available in smaller sizes, these screws have a flat point and can be driven into a pre-tapped hole or used with a nut.UNJC+UNJFComparable to UNC and UNFSimilar to UNC and UNF in both external and internal threading. External threading on these have a much larger root radius. These larger roots lead to increased tensile stress and as a result, make them stronger. Below is a list of most of the fastener acronyms you are likely to come across.




Acronym – Term Description
AN
Aeronautical Standards Group
Precedes the dimensional specifications developed by the Aeronautical Standards Group.
ANSI
American National Standard Institute
The American National Standard Institute (founded 1918) was formed to create a national standard for sizing.
ASME
American Society of Mechanical Engineers
The American Society of Mechanical Engineers (founded 1881) was created to pursue research, education and improvement of the industry while also placing a strong emphasis on public safety.
ASTM
American Society for Testing & Materials
The American Society for Testing & Materials (founded 1898) aims to promote safety and health by sharing information about the reliability of different aspects in the manufacturing industry.
CS
Countersink
A drilled hole with a wider rim so that a screw or bolt can sit inside that area and be flush with the surface it is installed into.
DIN
Deutsches Institut Für Normung
Din, 1917, is the German institute for standardization. They focus on the technical and scientific creation of technical standards.
En-Standards (CEN)
European Committee of Standardization
CEN was created to be a mediator between the European Union and European Free Trade Association. They were to pass resolutions which both parties must adhere to.
FT
Fully Threaded
Threading that starts at the tip of the screw and goes all the way to the undercut of the head.
GR
Grade
A level of material that describes its composition.
HDG
Hot Dip Galvanized
A process that adds a layer of corrosion resistance by dipping fabricated steel into a kettle containing molten zinc.
IFI
Industrial Fastener Institute
Founded in 1931, the Industrial Fastener Institute is an association who supports standards for the mechanical fastener industry. They often develop standards when one does not exist until a national standard can be provided.
ISO
International Organization for Standardization
The ISO, is a federation of 158 countries from all over the world. Based in Switzerland, they propose, develop and implement new standards and then deliver them to the world.
LF
Large Flange
A wider surface area, often with a much greater outer diameter, than the typical surface area. Ex: Large Flange Washers.
MS
Military Standards
Standardized objectives created by the U.S. Department of Defense.
Prop 65
California’s Safe Drinking Water and Toxic Enforcement Act
A warning label that protects Californians from chemicals which can cause long-term health defects.
PT
Partially Threaded
Threading that starts at the tip of a screw and stops at some point allowing for the screw or bolt to have a shoulder.
REACH
Authorization and Restriction of Chemicals
A European regulation created to test and determine if chemicals are safe and can be used.
RoHS
Restriction of certain Hazardous Substances
RoHS is a directive to restrict hazardous substances in electrical and electronic equipment. Any fastener that is a component of electrical parts and placed on the European Union market must adhere to this restriction.
SAE
Society of Automotive Engineers
A society, founded in 1905, to test and create standards for the automotive industry. They also develop standards for heavy-duty and aerospace vehicles.
SD
Self Driller or Self Drilling Screws
Primarily used to drill into steel and join materials such as sheet metal today.
SEMS
Pre-assembled Screws
Pre-made screw and washer assemblies.
SLT
Slotted
A common drive style which is also commonly called a flat head.
SMS
Sheet Metal Screws
Sharp threaded screws used to cut into soft metals, wood or plastics.
UN
Thread Sizing
A series of threading for applications where UNC, UNF, UNEF and UNS are not applicable.
UNEF
Unified National Extra Fine
Threads even smaller than fine threading these extra fine threads are commonly used on very small screws to make the screw stronger.
UNC
Unified National Coarse
Coarse threading that is the prefered thread for general use.
UNF
Unified National Fine
Fine threading that is not as strong as coarse threading. They do offer finer adjustments than coarse threads.
UNR
Unified Round
The root radius must be rounded but does not necessarily have to be inspected.
UNS
Unified Special
Threads that are tip(threads per inch) specified but are limited to a specific diameter.

There are many fastener abbreviations, not all of which are listed here. Please let us know in the comments below which acronyms we forgot and help us to create a more informed fastener community!



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Threaded Rod – Fully Threaded Rods

 

Now Available by Popular Demand:

Threaded RodThreaded Rod

Threaded Rod, also known as All Thread, ATR, Redi-Rod, Threaded Bar, and Stud, is essentially a long bolt without a head. It is also used for fastening anything from an anchor bolt, to suspending electrical or plumbing equipment from a ceiling and often used in drop ceiling application. Fully Threaded Rods are often used with coupling nuts in tension assemblies. Coupling Nuts offer the ability to connect multiple threaded items together. Reducer Coupling Nuts offer the ability to couple different rod sizes. Fully Threaded Rods are used to join and stabilize structures or objects, often into ceilings or walls. Threaded fastener strength varies by size and material, making a solution for all rod needs.

Threaded Rod from Albany County Fasteners is available in 3 and 6 foot lengths in a variety of materials including Stainless Steel, B7 Alloy Steel, Zinc Plated Steel, Hot Dip Galvanized Steel and Brass.

In addition to the standard lengths, we are offering custom orders, where we can cut and chamfer each bar to your specifications in house.




Custom Threaded Rod Cutting and Chamfer Options Available.
Call For Details

Threaded Bar   Cut Threaded Bar

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Star Drive Deck Screws have Arrived!

Stainless Steel Star Drive Deck Screws

Also Known as Torx, 6lobe, and Hexalobular Drive

 
stainless steel deck screws

Star Drive Deck Screws are here by popular demand! Star Drive Deck Screws are functionally the same as our standard Square Drive Deck screws, however they feature an unconventional drive style that offers many installation benefits including higher torque possibilities and more resistance to cam out than a conventional style like Phillips or slotted.
The “Star” drive style for screws (like many things in the industry!), goes by many names including Torx, 6lobe and Hexalobular and is characterized by having a fastener recess with six points of contact which allow for these benefits.

Star Drive Deck Screw


Stainless Steel Deck Screws in all drive styles feature a notched Type 17 point to help cut into the wood or composite boards being installed, as well as sharp cutting threads for stronger retention. Stainless Steel Deck Screws are used primarily in outdoor applications due to the corrosion / rust resistant properties of the metal, making them a good choice for long-lasting applications.




For more information on Deck Screws in both Star Drive and Square Drive and to browse our selection visit our Decking Fasteners section today!


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Best Deck Material – Buy Now!

The Best Deck Material – Deck screws, Post Bases, Caps, and More!

As the snow begins to melt and spring approaches, it signifies one thing at our company: Decking Season is starting!

With decking season getting underway, we proudly announce expanded decking solutions, including new product launches to better serve customers on decking projects.

 

 


Stainless Steel Deck Screws

Stainless Steel Deck Screws

Stainless steel deck screws feature easy installation in wood and composite deck materials with their flat head and notched type 17 point. Our deck screws have a square drive preventing screw stripping for high torque saving time and money replacing stripped screws. Historically, deck screws have either a bugle or countersunk flat head flush installed with decking beams, posts, and boards. Our 305 and 316 stainless steel deck screws resist rust suiting exterior use. Stainless steel is a durable best deck material. For easy fastening, titanium nitride premium power bits are recommended.

Check Out Our Stainless Steel Deck Screws


Decking Post Bases

Decking Post Base

Designed anchoring to concrete, post bases hold vertical beams or posts to footings. 316 stainless steel post bases commonly work with stainless wedges for strength as a premier deck material. See our video demonstrating post base install! Post bases include a square washer (two for 8×8) securing the anchor and a stand-off plate covering the anchor head eliminating wood underside holes. Provides high uplift capacity.

Our post bases use 316 stainless steel resisting corrosion even in harsh environments.



Check Out Our Stainless Steel Decking Post Base


Decking Post Caps

Decking Post Caps

Post caps secure wood posts to support beams. They are essential building and reinforcing decks, using 316 stainless steel nails maintaining product warranty since stainless suits deck material needs.

Post cap anchors have one-piece and two-piece adjustable designs in 316 stainless steel.



Check Out Our Stainless Steel Decking Post Caps


Decking Joist Hangers

As framing connectors, joist hangers support and set joist ends to beams or girders. Typically deck ledger boards anchor joists and hangers to framing. Stainless steel is an ideal deck material, being strong and corrosion resistant! Joist hangers form the floored parallel pattern on decks.

Stainless Steel Joist Hangers

In decks, hanger height should match joist depth used. Hole numbers indicate nails securing connections. Special holes allow double shear toe-nailing for very strong joist attachments. Correct installing keeps decks strong despite wood changes over time. Hangers come in standard, concealed flange, and skewed types in 316 stainless steel.

Avoid mixing metals; use same grade stainless steel hangers and nails. Only use nails with hangers.


Check Out Our Stainless Steel Joist Hangers


Happy Decking!

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AlbanyCountyFasteners.com – Fasteners 101 YouTube Channel

Fasteners 101 – Fastener and Hardware Information

Our YouTube Channel has Launched!

We have consolidated our videos into a simple and easy to stream location. Check out our video resource library to view all of our Fastener 101 videos without ever having to leave the website. For convenience we have also included the link to the you tube channel below.


For the latest Fastener Information, Hardware Demonstrations and Tool Reviews be sure to check out Our YouTube Channel!

Here, we are launching several videos to demonstrate fastener basics and answer commonly asked questions. We have a growing library of product reviews, installation demonstrations, instructional videos and more for all things Fastener related!

Be sure to leave your comments and send us your requests and check back daily to see new videos as we upload them. If there is a product review or video that you would like to see us create, tell us! We love to hear your suggestions.

Take a look at one of our favorite new products below:

 

Albany County Fasteners is committed to providing a better user experience. Please share your issues and suggestions in the comments below! We would love to hear feedback from you!

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