Distribution Channels for Wedge Anchors
- CONFAST.com - The best price and largest variety of wedge anchors can be found at www.confast.com/, which is the website of Concrete Fastening Systems, Inc. Pricing on wedge anchors from Concrete Fastening Systems Inc. for all types is lowest due to the large volume, extensive variety and, most of all, from being the main source for all types of concrete fasteners worldwide. Buying from Concrete Fastening Systems, Inc. allows the purchaser to buy direct and eliminates a number of the links within the normal distribution channels.
- Retail - The pricing on wedge anchors at the local level will be 2 times to 3 times higher than the delivered cost of wedge anchors purchased from www.confast.com/ The advantages for paying more at the local level are that the wedge anchors are available the same day as needed and the number of pieces required to be bought may be smaller. Retail outlets usually have single or smaller packages available, but this convenience results in a higher price.
Pricing by Diameter
As the diameters of wedge anchor increase, so do their prices. This increase in price for the larger diameters is due to the fact that they contain more steel and are more costly to purchase and manufacture. The diameter also helps determine the holding values - the larger the diameter of wedge anchor then the better the holding values. The diameter required for any particular application is determined by an engineer, by the holding values required, or by the diameter of the hole in the material being fastened.
Pricing by Length
Each diameter of wedge anchor comes in different lengths, with the price increasing as the length of the wedge anchor increases. Different length wedge anchors are required to allow for different thicknesses of material to be fastened to the concrete. The length of the wedge anchor required is determined by adding the minimum embedment for the diameter of wedge anchor being installed, plus the thickness of the material being fastened, plus space for the nut and washer. Wedge anchor lengths are measured as an overall length from one end of the stud to the other end.
Pricing by Type
- Zinc Plated - the zinc plated wedge anchors have the lowest price because they are produced in huge quantities and the process to manufacture and zinc plate them is less expensive. The zinc plated wedge anchors provide the least amount of rust resistance of all the wedge anchors and are designed for use in indoor dry environments.
- Hot-Dipped Galvanized - next to the zinc plated the hot-dipped galvanized wedge anchors are the least expensive to purchase, and the cost range is about 1.5 to 2 times the price of zinc plated wedge anchors. The price is higher because there are less being manufactured, the cost of manufacturing is higher, the threads must be made differently and the process of hot-dipping each anchor costs more. Hot-dipped galvanized wedge anchors provide good rust resistance in outdoor applications where moisture may be present.
- Stainless Steel 304 - the 303 and 304 stainless steel are more expensive than the hot-dipped galvanized and generally cost about twice the cost of a hot-dipped galvanized wedge anchor and 3 to 4 times the price of a zinc plated wedge anchor. The 303 and 304 stainless steel wedge anchor are more expensive because the raw material is more costly to purchase. Stainless steel wedge anchors are used in outdoor applications, in applications that are submerged in water and in areas where some chemicals may be present.
- Stainless Steel 316 - the most expensive type of wedge anchor is manufactured from 316 stainless steel. The 316 stainless steel is a very high-quality stainless steel and is used in applications where chemicals may be present. They are expensive to produce due to the high cost of the raw material.
Wedge Anchor Applications
Wedge anchors are designed to be used in solid concrete and should never be used in brick, block or any other non-solid base material. The holding values for wedge anchors do not differ by the material they are manufactured from nor by the coating provided for rust resistance.
The diameter of the hole that needs to be drilled for a wedge anchor is equal to the diameter of the wedge anchor being installed.
Depth of Hole
The depth of the hole must be drilled to a minimum of 1/2" deeper than the embedment of the wedge anchor into the concrete. This ensures that the wedge anchor will not bottom out in the hole before it reaches the required embedment depth and also leaves space for any dust to fall that may have been created during the installation process.
Drilling the Hole
The hole is critical for the wedge anchor to obtain holding values and great care must be taken to ensure that the hole is drilled properly. The hole for a wedge anchor must be drilled with a hammer drill that is set in the hammer and rotation mode. A carbide tipped bit must also be used which must meet ANSI standards. This will ensure proper hole tolerance required for the wedge anchor being installed.
To ensure proper holding values, the wedge anchor must be torqued within a range of torque values determined by the manufacturer.
The installation of wedge anchors is the same for all the different types of wedge anchors. Viewing the following video will provide a complete installation guide. Watch the Wedge Anchor Installation Video here.
Check out all the technical information about wedge anchors at the following link: Wedge Anchor Technical Information
Wedge Anchor Pricing
All the pricing for the zinc, hot-dipped galvanized wedge anchors are described at the following link: Wedge Anchor Pricing