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Lag Screws For Treated Lumber

Lag Screws For Treated Lumber

Lag screws are fairly inexpensive, which is a bonus. But be sure to get stainless steel or hot-dipped galvanized screws for optimal performance. You can invest a little bit more to get lag screws that require no pre-drilled holes. These special lag screws often have washers attached to their heads.
The last time I used PT wood the formula was different so I'm not sure if the requirements for the hardware changed also.. 2003 International Residential Code – Fastener Statement, Section R319.3: “Fasteners for pressure-preservative treated wood shall be hot-dipped galvanized.
Shop our selection of Lag Bolts in the Hardware Department at The Home Depot.
And when water contacts ACQ- or CA-treated wood, it lifts copper ions from the. . style of polymer-coated, thinner-diameter, self-drilling lag screws (Figure 7) .
Although existing stocks of CCA treated lumber continued to be sold, all pressure treated lumber manu-. . dipped galvanized lag screw approved for ACQ.
Mechanically galvanized screws are generally suitable for decks and other outdoor projects made of pressure-treated lumber. Nevertheless, you should not use .
High-strength structural screws are beginning to displace traditional lag bolts. GRK is a premium screw available only at contractor-oriented lumberyards and online.. Structural fasteners are made from stronger steel and are heat-treated for .

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