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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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Decking Season is Coming…

Stainless Steel Deck Screws, Post Caps, Joist Hangers and More

As the snow begins to melt and spring comes upon is it means one thing here at Albany County Fasteners: Decking Season is coming!

As decking season swings into action we are proud to announce our expanding line of decking solutions including new product launches to better serve our customers who are active in decking projects.


Stainless Steel Deck Screws

Stainless Steel Deck Screws

Stainless Steel Deck Screws are essentially wood screws with a flat head and a notched type 17 point which allows for an easy installation in wood and composite deck materials. Deck Screws in our selection feature a square drive to eliminate screw stripping and allow for high torque installation to save time and money on replacing stripped out screws. Deck screws feature either a bugle or countersunk flat head for flush installation with decking beams, posts and boards in wood or composite. Our deck screws are available in 305 Stainless Steel and in 316 Stainless Steel to resist rust and effects of an exterior application. For quick and easy installation we recommend using a Titanium nitride premium power bit.

Check Out Our Stainless Steel Deck Screws


Decking Post Bases

Decking Post Base

Decking post bases are designed to be anchored to concrete and hold a vertical beam or post to their footings. Decking Post Bases are available in 316 Stainless Steel and commonly used in conjunction with stainless steel wedge anchors. Check out Our installation video here. Each Post Base connector comes with a square washer (Two square washers for 8×8 sizes) to secure the concrete anchor and a stand-off plate to cover the anchor’s head so a hole doesn’t need to be cut in the underside of the wood that connects to the post base. Provides a high uplift capacity.

All Decking Post Base Anchors in this selection are made of 316 Stainless Steel for superior corrosion resistance. 316 Stainless Steel is well suited for applications in severe, harsh, or marine environments.

Check Out Our Stainless Steel Decking Post Bases


Decking Post Caps

Decking Post Caps

Post Cap Anchors are used to secure a wood post to a support beam. Used with nails to secure the post cap connection between a wood column and a wood beam. Post caps are essential for supporting and building a deck. Should only be installed with 316 Stainless Steel Nails to maintain product warranty.

Post Cap Anchors come in one-piece and adjustable two-piece designs.
All Decking Post Base Anchors in this selection are made of 316 Stainless Steel for superior corrosion resistance. 316 Stainless Steel is well suited for applications in severe, harsh, or marine environments.

Check Out Our Stainless Steel Decking Post Caps


Decking Joist Hangers

Joist Hangers are framing connectors used for decking applications. These are metal angles or straps used to support and fix the ends of wood or timber joists to beams or girders. They are typically used to help form the floor on decking applications and are attached to the ledger board of a deck, anchoring themselves and the joists to the deck framing. Joist Hangers wrap around three sides of a joist forming the parallel pattern often seen that make up deck floors, prior to being covered.

In decking applications, the height of a joist hanger should match the depth of the joist being used.
The number of holes in a given joist hanger dictate the amount of nails expected to be used to make a secure connection. In addition, joist hangers are designed with special holes for Double-Shear nailing, or “toe-nailing,” to provide a very strong connection to the joists being fastened. If installed correctly, joist hangers will keep decks and floors strong as the wood dries, twists, shrinks, and ages. Decking Joist Hangers are available in Standard, Concealed Flange, and Skewed Varieties, all in corrosion resistant 316 Stainless Steel.
Stainless Steel Joist Hangers  It is not recommended to mix metals during application. For example, a stainless steel joist hanger should be used with the same grade of stainless steel nails. In addition, only nails should be used when installing joist 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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