FastenMaster FMFL412B-250 FlatLok Structural Wood Screws, 4-1/2"

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For use with roof girder trusses, dimensional wood headers, LVL beams and interior corridor ledgers. Flat head sits flush, allowing for easy application of drywall or trim. Bucket of 250 screws.
SKU: 42974281
MFG: FMFL412B-250
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FlatLOK is a multi purpose structural wood-to-wood fastener that is an alternative fastening method to using nails and through bolts when attaching multi-ply LVL, dimensional beams and girder trusses. The flat head sits flush, allowing for easy application of drywall or trim.


  • Size: 4-1/2"
  • Red E-coat with clear top coat
  • Approved for single sided application
  • Flat head leaves a flush finish
  • Torx TTAP 40-drive system eliminates strip out
  • Designed for various multi-ply and engineered wood applications
  • Bucket of 250 screws


MFR: FMFL412B-250
SKU: 42974281
UPC: 608309429128
Brand: Fastenmaster