If you have an electrical junction box that needs to be attached to a block wall,sleeve anchors are sometimes used for this type of application. When fastening to concrete, brick or block base material, a hammer drill must be used. Remember,always use eye and ear protection when using a hammer drill.
Installation Tips:
- The hole for the sleeve anchor should be drilled 1/2” deeper into the base material than the anchor will penetrate. The anchor will deliver better holding values if it is embedded deeper into the base material.
- Sleeve anchors are designed for use in concrete, brick or block base material.
- The size of the hole to be drilled is the same as the diameter of the sleeve anchor being use for the application. Each diameter of sleeve anchor needs to be imbedded in the concrete a minimum depth. This minimum depth depends on the diameter of the anchor being used.
- To determine the length of sleeve anchor that should be used, add the thickness of the material being fastened to the minimum embedment.
Insert the sleeve anchor through the fixture and into the base material.Sleeve Anchor Installation:
- Using a wrench, turn the nut 2-4 times until snug. This will pull the stud up through the sleeve expanding it against the wall of the base material.
Sleeve Anchor Concerns:
- When working in outdoor environments, stainless steel anchors should be used for increased rust resistance.
- If you are working indoor, zinc-plated anchors should be sufficient.
- As a rule of thumb, the anchor should be spaced a minimum of 10 anchor diameters away from each other and no closer than 5 anchor diameters from an unsupported edge.
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