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Woodworking (rec.woodworking) Discussion forum covering all aspects of working with wood. All levels of expertise are encouraged to particiapte. |
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#1
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Blue masonry screws in a block wall?
Hello Group,
I was helping my nephew mount his kitchen cabinets on a block wall that has a 1/2 inch plaster finish. He is using those blue masonry lag screws to hold the units up. I have only used these screws in solid caps or solid concrete, never in blocks. The screws only have the thickness of the block wall (not certain how much that is)for thread contact, not the entire threaded portion. He is only using four screws per unit but I suggest six. Who out there has used these screws in block walls and what are your recommendations? Thanks in advance for your responses Marc |
#2
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He sould use an anchor that expands in the hollow part of the block.
You are correct, the Tap-Con (the blue screw) can pull out of the soft thin outer surface of the block. "marc rosen" wrote in message oups.com... Hello Group, I was helping my nephew mount his kitchen cabinets on a block wall that has a 1/2 inch plaster finish. He is using those blue masonry lag screws to hold the units up. I have only used these screws in solid caps or solid concrete, never in blocks. The screws only have the thickness of the block wall (not certain how much that is)for thread contact, not the entire threaded portion. He is only using four screws per unit but I suggest six. Who out there has used these screws in block walls and what are your recommendations? Thanks in advance for your responses Marc |
#3
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The wall thickness of a concrete block is about one inch. If he hits
the edge of the block you have the full block depth to drill into. I would be concerned with spot loading these types of blocks. I have always tended to use toggle bolts but then I always tend to overengineer. |
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