FastenMaster FMTHR008-6 ThruLOK Screw Bolt Fastening System, 8 Inches, 6-Count

The ThruLok system combines the speed of a Lok product with the strength of a through-bolted connection. ThruLok is a three-part assembly including a ThruLok fastener featuring the patent-pending Paddle Point, engineered washer and Lok-Nut. Highlights: Screw Length: 8" Primary Application: 4"x4" Deck post to double rim joist or rim joist and 2x blocking. Wood Dimension Range: 6-1/4" - 7" No predrilling required. Installs with an 18 volt cordless drill. No drill bits or wrenches required. Galvanized coating meets IRC ACQ corrosion requirement.