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Hex Machine Bolts are available in steel with a hot dip galvanized coating
or in basements
The 1″ standoff height is code-required when supporting permanent structures that are exposed to weather or water splash
5 holdown is pre-deflected during the manufacturing process
Kit Contains: 20-HM9
Simpson Strong-Tie HDU8 Holdown with SDS Screws Hex Machine Bolts are availableThe Simpson Strong Tie HDU8 SDS2. 5 holdown is pre deflected during the manufacturing process, virtually eliminating deflection under load due to material stretch. They use Simpson Strong Tie Strong Drive SDS screws (included) which install easily, reduce fastener slip and provide a greater net section when compared to bolts. Anchor with a 7 8 anchor. Made of 10 gauge galvanized steel.
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