The ThruLOK system combines the speed of a LOK product with the strength of a through-bolted connection in three decking applications: Single 2x to 4x Decking Posts (6 1⁄4"), Notched 6x Carrying Beams (7") and Double 2x to Single 4x Decking Posts (8").
ThruLOK is a three-part assembly including a ThruLOK fastener featuring the patent-pending Paddle Point™, engineered washer, and LOK-Nut. Other features include:
- No predrilling required
- Installs with an 18 volt cordless drill
- No drill bits or wrenches required
- Galvanized coating meets IRC ACQ corrosion requirement
- Lifetime performance guarantee
ThruLOK is a code-compliant way to attach deck posts and to secure carrying beams. View our technical bulletins in the Code Approvals section.
- Available Options
- Installation Instructions
- Technical Data
- Product Warranty Information
- Related FM Products
| Fastener Lengths: | 6 1/4", 7", 8" |
| Packaging Size: | 6 pc box, 24 pc box |
Put the ThruLOK-Washer on the ThruLOK screw with the teeth of the washer facing away from the head of the fastener. No predrilling required when properly installed. Using a 1⁄2" high torque variable speed drill (18V if cordless), drive the ThruLOK until washer and hex head are just above the wood surface (approx 1⁄4") and point of screw protrudes out other side of connection. Thread the ThruLOK-Nut onto point of fastener. Hand tighten nut until flush with wood. Tighten screw with drill. Repeat to match code-compliant fastening pattern.
NOTE: Point of fastener must engage in ThruLok-Nut to “MIN” line or beyond.