FlatLOK FMFL634-50

FlatLOK is designed for various multi-ply dimensional and engineered wood connections. FlatLOK is approved for single- sided installation. Approved for single-sided installation making the job easier to complete both at ground level or for elevated applications. "The flat head installs flush for easy finishing including drywall or trim. Plus, gain stronger bit engagement with the TORX ttap drive system." Tested and supported by engineering data that conforms to the most current ICC standards. It is also approved for use in ACQ or treated lumber.