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Polymer coated screws, like this LedgerLOK, have replaced bulky, galvanized lag bolts for many deck builders. No pilot holes needed. Tempering, not an option with hot dipped galvanized, has allowed manufacturers to engineer long thin screws with shear strengths and holding power equivalent to comparable lag screws.
Ideal for applications using poly or composite lumber. Square drive recess is deep and cleanly formed, reducing spinouts. Pancake head reduces overdriving, reduces mushrooming, leaves smooth finish.
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Originally developed for the building and wood products industries, production screws, as well as construction and deck screws, are made from carbon steel heat treated to provide a good balance of hardness and toughness.
The Firestone Polymer Fasteners are to be used in conjunction with Firestone Polymer Insulation Plates for the attachment of insulation, base sheets, and selected roof system components into cementitious wood fiber or gypsum
Applications: For use in composite and capped composite decking. Features: Pancake head reduces over driving, reduces mushrooming, leaves smooth finish
What’ll you have with that wood preservative: Hot dip galvanized, polymer coated, or stainless steel? Deck building used to be simpler. At the lumberyard, you’d load up on CCA treated 2 by stock for the floor system, 6x6s for the posts, and whatever the budget allowed for the decking — anything from 1x6 pressure treated to more expensive 1x4 Doug fir.