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ITW GRK Fasteners 02177 R4 Multi-Purpose Framing & Decking Screws #12/14 By 6-3/8 Inch Coated 50 Pack: Exterior Flat Head Decking & Framing Screws (772691021779-1)
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GRK 5/16-in x 3-1/8-in Double-barrier Lag Screw Alternative Exterior Wood Screws (100-Per Box) in the Wood Screws department at Lowes.com
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