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Apply a slight downward pressure to start the self-tapping action, as you would with a woodscrew. Thunderbolt is the original self-tapping anchor with the power to be used with a range of Building materials, including concrete, stone, brick marble, wood and block.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.