Fasteners are pieces of hardware that join objects together mechanically. They come in a variety of forms for a wide range of purposes. That's why it's important to choose the right fastener as well as the right size, strength and finish for your exact job.

At Construction Fasteners and Tools, we are experts in helping you understand your fastener options. We're happy to work with you to choose the right fastener for your next job and help you get the quantity you need at an affordable price. If you don't see the product or quantity that you need online, contact us and we will help you find it.

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Anchors and Studs

Anchors and studs are used for securely binding or anchoring components to a permanent base. You can use both types of fasteners in a broad range of applications from building construction to automotive engine assemblies. While studs and anchors are different devices, they typically serve the same purpose.

Studs are vertical or horizontal protrusions where pre-drilled parts are slipped over them and then secured by a threaded complementary fastener. Studs are classified as "male" components. They are threaded on the exposed side end and designed to hold fast, allowing a female open-ended compression fastener like a nut to secure the work.

Usually, a nut and washer combination is screwed over the stud to hold a component securely to a base. Studs are typically set into the main structural component's subsurface and attached by bonding or by expanding compression like set concrete.

Anchor and Stud Applications

Studs are common in mechanical assemblies, such as engine cylinder heads. The studs just press into the metal and hold down moving parts like rocker arms.

Anchors also secure components to a fixed base, although they function more like receptacles. You can screw or set other fasteners into them. Anchors are similar to tapped holes. They are designed as female receptacles that accept male companions like threaded bolts or machine screws. Anchors work best in solid applications where your workers can set them in predrilled holes in concrete. You can also use anchors in hollow wall situations like interior drywall partitions.

Anchor and Stud Types

Standard nails are classified as anchors, and so are mechanical rivets used in fastening aircraft and marine parts. Another common fastener type is the anchor bolts used in building foundations. These are a combination of an anchor and a stud. Do you know what type of anchor and stud you need for your project? Check out our comprehensive inventory list, or contact us if you're unsure. Our inventory of anchors and studs includes:

  • Anchor bolts
  • Cast-in anchors
  • Common nails
  • Drop ins
  • Expansion shields
  • Hanger bolts
  • Hanger mates
  • Heavy load anchors
  • Hollow wall anchors
  • Insulation fasteners
  • Mush head spikes
  • Nutserts
  • Pin bolts
  • Rivets
  • Screw expansion plugs
  • Sleeve anchors
  • Striker nails
  • Studs
  • Tapcons
  • Threaded rod
  • Tie wire and anchors
  • U-bolts
  • Wedge anchors
  • Weld studs

Bolts and Bolt Kits

Bolts are the primary fastener used in many applications. They come in a huge range of sizes, types, strengths, materials, thread counts and pitches, diameters, lengths, head styles and finishes. There is no such thing as a universal bolt, but what all bolts have in common is that they are designed to compress materials.

Bolt Applications

Typically, you would use bolts in conjunction with nuts and washers where they are set through predrilled holes in multiple surfaces. The bolt head stays stationary while compression or torque energy is applied to a nut. In timber frame construction, you will often use fixed carriage bolts with torqued nuts and washers.

Some bolt applications are different than the standard through-bolt with a compression nut. Bolts are sometimes designed to fit into fixed, threaded holes. Here, you would apply torque directly to the bolt head, and by turning the bolt, it results in compression. This occurs in engines when cylinder heads are bolted to a block.

Bolt Features

The three main bolt features are the head, the shaft and the threads. Most bolts have hex head configurations. However, some, such as carriage bolts and set screw bolts, have more unique head designs. The shaft is the bolt's lateral part, which you classify by length and diameter. The threads cut into the bolt shaft create torque when you twist the bolt or use a nut.

Bolt Types

Bolt threads fall into two categories:

  1. Coarse-threaded bolts: These have large spacing between thread ridges and grooves. Larger bolts where compression is not sensitive usually utilize coarse threads, which can turn faster and allow for quick assembly and disassembly.
  2. Fine-threaded bolts: These have closely spaced threads. They take longer to turn but have greater holding strength. Fine threads are best suited for thinner, more sensitive materials.

Manufacturers also produce bolts according to one of two world classifications. Imperial bolts are common in North America. They are also called U.S. or standard-sized bolts. The other class is metric bolts. Metric sizes are common in Europe. You measure imperial bolts in fractions of inches. Examples include 1/2 or 3/8-inch bolts. You measure metric bolts in millimeters. Examples include 10 and 12 mm bolts.

Construction Fasteners and Tools carries a large selection of bolt sizes, shapes and styles. Check out our online inventory. You are sure to find the exact bolt you need from these categories:

  • Capscrews
  • Carriage bolts
  • Flange bolts
  • Socket head bolts
  • Square head set screws
  • Structural bolts
  • Tap bolts
  • Bolt kits

If you're looking for an economical way to buy bulk bolts, then consider going with bolt kits. These kits contain the most common bolt types and sizes. That way, you can maintain a supply of bolts, nuts and washers for various applications. Choose from a 514-piece bolt kit or a larger 648-piece supply. Both come in dividable plastic containers with a see-through lid.


Nuts are complementary to bolts. Nuts need to be compatible with bolt size and thread, and they are considered to be female fastening devices. They are drilled to accept internal insertion and are almost always designed to apply the compression torque, not to receive it.

Nut Size and Strength

They are available in coarse and fine threads as well as in metric and imperial sizes. Nut sizes are determined by the inside diameter (i/d) of the threads, unlike bolts, which are rated according to outside diameter (o/d). Nut strength has to be equal to or greater than its supporting bolt. Like bolts, nuts are rated in strength grades as determined by the nut's chemical or metallurgical composition.

Each strength grade has a numerical value. The higher the number, the stronger it is. Strength ratings are similar for both nuts and bolts. Grade one and two nuts are comparatively weak as compared to grades six and eight. Grade ratings also change according to the type of metal used to manufacture the nut.

Nut Finishes

Nuts come in various finishes, as bolts do. It is important to make sure you use nuts and bolts with the same finishes. This affects more than just appearance. You also have to account for chemical reactions. The following are some common nut finishes:

  • Zinc-plated steel: This is a low carbon steel for light-duty use. These nuts are inexpensive and prone to corrosion in outdoor applications. Colors range from a bluish tinge to a yellow tone.
  • Hot-dipped galvanized steel: These nuts have a thicker, heat-applied zinc coating. They provide resistance to resists, making them ideal for outdoor use. The color is usually a rough and dull gray.
  • Stainless steel: Stainless steel offers excellent corrosion protection due to the chromium added to the metal composition. Stainless steel nuts are relatively expensive, and they're ideal if you're using them around water. Marine-grade stainless steel nuts are designed for saltwater applications. Their color is usually a shiny silver-gray.
  • Chrome and nickel-plated steel: These nuts are suitable for indoor work where you might need a polished appearance, and you're not concerned about corrosion. They are often used in appliance and furniture projects. Chrome and nickel-plated nuts are relatively inexpensive. Their color is bright and shiny.
  • Brass and bronze: These are specialty metals. Both are copper alloys and are perfect if corrosion is an issue. Often, brass and bronze nuts are for decorative purposes rather than structural requirements.
  • Alloy steel: This is a highly hardened metal and very expensive. Despite being incredibly strong, alloy steel nuts are highly susceptible to rust. They are usually used in oil-emulsion environments like internal engine parts. Their color is dull black.

Nut Types

Construction Fasteners and Tools maintains a wide-ranging inventory of specialized nuts. Browse our online catalog and review our selection of nuts to find the ones that are right for your project.

  • Acorn nuts
  • Castle nuts
  • Coupling nuts
  • Eye nuts
  • Flange nuts
  • Hex nuts
  • Jam nuts
  • Lock nuts
  • Machine nuts
  • Miscellaneous nuts
  • Square nuts
  • Stover nuts
  • Tee nuts
  • Weld nuts
  • Wing nuts


If you're working with wood or metal construction, then you will no doubt be using screws frequently. They are an extension of bolt design and are available in many of the same materials. It's important to understand the main difference between screws and bolts. Unlike bolts, screws are designed to work on their own without the need for nuts. Screws are also made to be self-tapping. Although, in tougher materials, they typically require pilot holes.

Screw Heads

When choosing the correct screw type, it's vital to consider what type of head you need. Each type of screw head has its purpose. Different screw head types include:

  • Phillips
  • Robertson
  • Hex
  • Pan
  • Flat
  • Oval
  • Round
  • Truss
  • Socket
  • Button

Many screws use a standard slot or an X-shaped Phillips head. The recessed square Robertson drive is one of the most popular screw head types in Canada. The big advantage of a Robertson head is holding power. Robertson screws are harder to strip. Countersink heads work well in wood and drywall construction because you can set the head to be either flat or sunken to accept filler.

For more information on the different types of screw heads and the best choice for your next project, contact our team of experts.

Screw Ratings

Screws are rated by length, diameter and thread style. Most screws have very coarse threads. That allows you to drive screws quickly, which is an enormous advantage for large projects like wood houses and metal roofs. Many builders swear by using screws over nails in the right situation. That's especially true in floor and deck construction.

Metal screws normally have tighter threads. They are shorter as penetration requirement in metal work tends to be shallow. Machine screws are often used if you are fastening metal. They are actually more similar to a bolt than a screw as they are made to thread into an object. All forms utilize torque applied to the screw head, not its substrate receptacle.

Screw Types

Construction Fasteners and Tools carries an excellent assortment of standard and specialty screws. You can browse these screw types online and select the screws that best fit your needs:

  • Cement board screws
  • Dekfast screws
  • Dowels
  • Drywall screws
  • Floor board screws
  • Lag screws
  • Machine screws
  • Roofing screws
  • Sheet metal screws
  • Strip for gun screws
  • Tamper proof screws
  • Tek screws
  • Wood screws


Washers are the silent heroes in the fastener business. The proper washer can be the difference between long-term success and failure or the need for early repairs. Washers are used in conjunction with primary fasteners such as a bolt or a nut, and there are two primary washer types:

  1. Flat or compression washer: Compression washers help to transfer the torque or pressure against the work surface. This prevents crushing the surface by evenly transferring loads across a larger area.
  2. Split or lock washer: Lock washers are already pre-stressed or pre-loaded. When you tighten the primary fastener, the lock washer compresses, and its resistance forces back against the fastener head. This back force locks the head and prevents it from loosening accidentally.

Often, you use both together, but you must position the lock washer between the bolt or screw head and the compression washer. Placing a lock washer under a compression washer and against the work surface may cause trouble.

Washer Sizes and Finishes

Washers come in a variety of sizes, thicknesses and materials. The important thing is always using washers that are compatible with the nut and bolt assembly. Here are some things to consider when you're deciding on the right washer type:

  • Choose the correct size: It's vital to match the right-sized washer with its nut or bolt. Washers that are too big are limited in compression value just as using too small a washer also limits its purpose.
  • Consider inner and outer diameters: Washer sizing refers to both inner and outer diameters. Some, like the fender washer, have a much larger outside diameter compared to inner diameter. This is to widen the compression area and limit crush.
  • Pick the right finish: Like nuts and bolts, washers have varying strengths and finishes. Be sure to pick the finish that makes sense for the materials you are using and the environment they are in. w

Washer Types

Construction Fasteners and Tools offers many different forms of compression, lock and specialty washers. Have a look at our online catalog where you'll find the combination of washers you need. We carry:

  • Bevel washers
  • Fender washers
  • Finish washers
  • Flat washers
  • Lock washers
  • Miscellaneous washers
  • Neo washers
  • Structural washers

Bulk Buying Options at Construction Fasteners and Tools

Many Construction Fastener and Tools customers find bulk purchasing their fasteners is the best way to go. If you are a contractor or even a do-it-yourselfer who will use a lot of fasteners for your next project, bulk buying will get you the most value for your money. That goes for every type of fastener we handle.

For bulk pricing for quantities larger than you see on the site, please call our service representatives at 1-866-238-8880, and we will be happy to provide you with a quote for large fastener quantities. That includes studs and anchors, bolts, nuts, screws and washers. We can supply by the weight, piece number or case lot.

We can offer excellent value through bulk buying because of our purchasing power. Construction Fasteners and Tools is part of an organization called The Fastener Group. This is a western Canadian association that uses a combined market size to leverage wholesale bulk purchasing. This allows us to pass on savings to you, our valued customer.

We also offer free shipping on all orders over $200, and same-day shipping is available for most products.

Trust Construction Fasteners and Tools for Your Fastener Needs

At Construction Fasteners and Tools, our mission is to make all of our customers feel satisfied and appreciated. We go the extra mile in providing excellent service and we do whatever it takes to go above and beyond your expectations. You can trust us for all your fastener needs.

Please browse through our easy-to-use and secure website. Here you will find more than just a huge volume of regular and specialty fasteners. We also carry hand and power tools from name brands like Bosch, DeWalt, Fein, Festool, Freud, Makita, Milwaukee, Rigid, Walter and Werner and a large supply of safety equipment.

If you need something not listed online, we will do our best to source it for you. Call Construction Fasteners and Tools today at 1-866-238-8880 or contact us online.