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How to Install Cement Anchors

Sunday, February 13, 2011
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There are many different types of cement anchors and each type is installed differently.  Cement anchors range in size from a 3/16” diameter all the way up to a 1-1/4” diameter, with lengths from 3/4” to 12”.  Some cement anchors are female type anchors that require a setting tool while others utilize the bolt to expand them. Male type cement anchors require either a wrench, hammer or screwdriver to set them into the base material.

Cement Wedge Anchor
Wedge anchors are designed for use only in cement and cannot be used in brick or block base materials.  Cement wedge anchors are a male type cement anchor that requires a wrench to set the anchor in the cement.  Cement wedge anchors come in a wide variety of diameters and lengths, ranging in light duty 1/4” diameter to heavy duty 1-1/4” diameter cement fastening.  Each diameter of cement wedge anchor comes in several different lengths in order for different thickness of fixtures to be fastened.  The length of cement wedge anchor used on an application is determined by adding the thickness of the material being fastened to the minimum embedment for the diameter of cement wedge anchor being used.  Each diameter has a minimum embedment depth in cement that will provide safe installation and achieve minimum holding values.

Cement Wedge Anchor Information
Cement Wedge Anchor Installation and Video

Cement Screws
Cement screws tap threads into the predrilled hole in the base material.  Cement screws can be used in a variety of masonry base materials such as cement, brick or block.  The standard cement screw comes in two diameters of 3/16” and 1/4”. Each diameter is available in different lengths ranging from 1-1/4” to 6”.  Both diameters of cement screws are manufactured in two different head configurations of either hex washer slotted or a flat countersunk Phillips.  The hex head cement screws are designed for application in which the head of the screw is not countersunk into the fixture being fastened and the overall length of the hex head cement screw is measured from underneath the head.  The flat head cement screw is used in applications where the head of the screw is countersunk into the fixture and they are measured as an overall length with the head included in the measurement.

Cement Screw Information
Cement Screw Installation and Video

Cement Sleeve Anchor
The cement sleeve anchor is one of the most versatile cement anchors on the market today.  Cement sleeve anchors can be used in concrete, brick, block. They come completely assembled and ready to use.  The hole diameter in the base material which must be drilled for the cement sleeve anchor is equal to the diameter of cement sleeve anchor being used.  Cement sleeve anchors sizes range in diameters from 1/4” to 3/4” and in lengths from 5/8” to 6-1/4”.  The diameter of sleeve anchor to use is determined by the hole in the fixture being fastened and the holding values required for the particular application.  Cement sleeve anchors are available with a number of different heads types that meet very specific applications requirements. The head styles available are acorn, hex, flat and round.

Cement Sleeve Anchor Information
Cement Sleeve Anchor Installation and Video

Cement Drop-In Anchor
Cement drop-in anchors are a female type cement anchor that is designed for use in solid concrete and cannot be used in brick or block base material.  The drop-in cement anchor comes in five diameters of 1/4”, 3/8”, 1/2”, 5/8” and 3/4”, with each diameter cement drop-in anchor coming in only one length.  The cement drop-in anchor is primarily used with a threaded rod and for installations in the ceiling for hanging electrical trapeze, for ductwork or for other mechanical apparatus used in the construction of commercial buildings.  The cement drop-in anchor can be used as a flush mounted anchor in conjunction with a standard bolt that allows for bolting and unbolting.  The cement drop-in anchor requires the use of a setting tool to set the cement drop-in anchor into the cement.   Once the cement drop-in anchor is set then a bolt or threaded rod can be inserted and taken out as many times as required.

Cement Drop-In Anchor Information
Cement Drop-In Anchor Installation and Video

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Always use personal protective equipmentAs with any anchoring project, it is important to keep safety in mind and follow instructions carefully. Always remember to wear safety goggles, handle all tools with extra care and follow all technical specifications. This article is meant to serve only as a basic explanation of concrete fasteners. Always refer to manufacturer's instructions or consult a contracting expert during any anchoring project.

Article Written By:
Mike Pistorino, Vice-President Operations





Concrete Fastening Systems, Inc. has over 40 years of experience selling concrete fasteners. We can ship out one box or a whole pallet of concrete anchors. Our products are of the highest quality... "your satisfaction is guaranteed". We ship all orders the same day the order is received.

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