Fastenmaster FMFL412B-250 FLATLOK 4-1/2" Structural Wood Screws (250/Tub)
FlatLOK is a multi-purpose structural wood screw that can be used for fastening multi-ply LVL and girder trusses. The flat head allows for easy finishing including drywall or trim.
FlatLOK is approved for single-sided installation making the job easier to complete both at ground level or for elevated applications.
The FlatLOK wood screw features a TORX ttap drive system that maximizes bit fit, reducing the potential for stripping. The stability button allows for maximum penetration into the fastener and a wobble-free drive. A free TORX ttap bit is included in every box.
Features
- No predrilling
- Strip-out resistant #40 TORX® ttap® drive system
- Guaranteed corrosion resistance. ACQ approved
- Approved for single-sided installation
- Code compliant based on testing per ICC-ES AC233
- Free bit in every package
- Made in USA
Length/Applications:
- 2-7/8": 2-ply roof girder trusses and 2-ply dimensional wood headers
- 3-1/2": 2-ply LVL beams
- 4": Interior corridor ledgers
- 4-1/2": 3-ply roof girder trusses and 3-ply beams
- 5" 3-ply LVL beams
- 6": 4-ply roof girder trusses and 2-ply open web floor trusses
- 6-3/4": 4-ply LVL beams
FlatLOK is 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