Thru Lok Screw Bolt Fastening System by Fastenmaster

$87.99 - $102.99
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Thru Lok screw bolt fastening system

The Thru Lok fastening system is used by professional contractors nationwide to meet code and lower costs when attaching deck postsThe 8" Thru Lok has been tested and proven to meet 2012 IRC requirements for joist connections and guardrail post to rim connections. It is a fact that by using the Thru Lok system you will save money and time.


  • No pre drilling required
  • Installs with an 18-volt cordless drill
  • No drill bits or wrenches required
  • Galvanized coating meets IRC ACQ corrosion requirement
  • Lifetime performance guarantee
  • Sold in packs of 24
  • Hex Head


  • 6-1/4"
  • 7"
  • 8"

ThruLOK is a code-compliant way to attach deck posts and to secure carrying beams.

Click HERE for Technical Evaluation Report

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