Sleeve anchors with diameters of 5 8 and 3 4 are usually considered heavy duty anchors.
Length of sleeve anchor for concrete block wall.
Sleeve anchors are designed for use in hollow base materials such block or brick.
An engineer should be consulted every time concrete anchors are used for heavy loads.
The threads are created with a special design that allows for removal of the dust that is created while cutting the threads.
The hole to be drilled in the base material is equal to the diameter of the sleeve anchor being used.
The expansion anchors can hold enormous weight.
Tighten the fastener until it s secure.
Toggle bolt masonry concrete anchors.
Sleeve anchors are also available in flat head and hex bolt head types.
Sleeves pinch the side of the pilot hole and get tighter as the screw is driven into place.
If you need to hang a bracket or something else on a hollow concrete block wall you should consider using a metal sleeve anchor.
Concrete screws are the generic name for a specially manufactured screw that taps threads into concrete brick or block.
Best for medium duty applications such as metal railing and grab bars set in concrete block.
Sleeve anchors require a hole that is the same diameter as the anchor being installed.
It is a mechanical expansion anchor assembled with an expansion sleeve spacer nut and washer.
It is critical that the length of the sleeve anchor chosen does not protrude into the hollow section.
For example a 3 8 anchor requires a 3 8 hole to be drilled.
Masonry concrete anchors.
Hold the object you re fastening firmly against the wall because the anchor will draw it only slightly tighter as you tighten the screw or nut.
First drill the proper size pilot hole 3 8 in 1 2 in etc through the wood or metal and into the concrete.
Sleeve anchors masonry concrete anchors.
A typical three eighths inch expansion anchor which is embedded only 2 5 inches in a sound concrete wall can resist 1 200 pounds of pull.
The depth of the hole that is drilled into the base material must be a minimum of 1 2 deeper than the anchor will penetrate.
The sleeve anchor can be installed in solid concrete brick or block base material.
To determine the length of sleeve anchor required add the thickness of the material to be fastened plus minimum embedment plus the thickness of the nut and washer.
Length is measured from the washer to the end of the anchor.
The threads are hardened to cut the base material.
This anchor is very versatile because there is a wide range of lengths available allowing materials of many different thicknesses to be attached to a block wall.