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Strong-Drive® SDCF TIMBER-CF Screw 

Strong-Drive® SDCF TIMBER-CF Screw

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The Strong-Drive SDCF Timber-CF screw is a structural fastener available in a variety of lengths and is designed for cross-laminated timber (CLT), mass timber construction and general interior applications. These 0.315"- and 0.390"-diameter structural fasteners provide uncompromised strength for these demanding applications. The large flat head with underhead nibs provides for clean countersinking. The yellow zinc, fully-threaded screw, with a proprietary unique point, provides fast starts with no predrilling and excellent withdrawal and shear resistance. For interior and dry applications only.

Key Features

  • Flat head with nibs helps countersink the screw for a flush finish
  • Heavy-duty, fully-threaded shank provides strength, with superb withdrawal resistance
  • Head stamp includes length in mm for inspection
  • Type-17 point for fast starts
  • Interior grade yellow-zinc coating
  • Deep 6-lobe recess for a secure drive (replacement bit: BIT50T-134 for 23 5/8" length; BIT40T-134 for all others)
  • Available in 4 3/4", 5 1/2", 6 1/4", 7", 8 5/8", 10 1/4", 11 3/4", 13 3/4", 19 5/8" and 23 5/8" lengths

Applications

  • Beam reinforcement, wall-to-wall, floor-to-floor, support beams, butt joints, bearing reinforcement, splitting reinforcement

Related Literature

Strong-Drive® SDCF TIMBER-CF Screw For Mass Timber and CLT Fastening
S-F-SDCF22
A flier providing product and installation information about the Strong-Drive SDCF TIMBER-CF screw.
Flier
Connectors and Fasteners for Mass Timber Construction Catalog
C-C-MASSTIMBER20
A catalog featuring connectors and fasteners for mass timber and CLT construction solutions.
Catalog
Mass Timber Washer Strap (MTWS) for CLT
F-C-CLTMTWS22
A flier providing product and installation information about the MTWS mass timber washer strap.
Flier
SDCF TIMBER-CF As Compression Reinforcement
TEB-F-SDCFCOMP21
Values for Strong-Drive® SDCF Timber-CF screws when used for compression reinforcement perpendicular to grain in glue-laminated timber (glulam), cross-laminated limber (CLT), and heavy timbers.
Technical Bulletin
Installation Torque and Tools for SDCF TIMBER-CF Screws and SDCP TIMBER-CP Screws
L-SDCFCPIN22
This letter includes installation recommendations for SDCF TIMBER-CF (SDCF22) and SDCP TIMBER-CP (SDCP22) screws.
Engineering Letter
MTW45-8 Mass-Timber Angled Washer Installed with Strong-Drive® SDCF Timber-CF Screws
L-MTW45SDCF22
The purpose of this letter is to present allowable loads and stiffness behavior for the MTW45-8 mass-timber angled washer when installed with Strong-Drive® SDCF Timber-CF screws.
Engineering Letter
Strong-Drive® SDCF, SDCP, and SDHR screws in ICC-ES ESR-3046
L-F-SDCFCPHR21
Simpson Strong-Tie® Strong-Drive® SDCF Timber-CF screw, SDCP Timber-CP screw and SDHR Combo-Head screw are now listed in ICC-ES ESR-3046.
Engineering Letter
Simpson Strong-Tie® Strong-Drive® SDCF TIMBER-CF Screw
L-F-SDCFSCREW20
Strong-Drive® SDCF Timber-CF screws are load rated for shear, pull-through and withdrawal resistance in sawn wood, glulam, CLT and engineered wood products.
Engineering Letter
Simpson Strong-Tie® Strong-Drive® SDCF TIMBER-CF Screws
L-F-SDCFCAN22
This letter provides design information for Simpson Strong-Tie Strong-Drive SDCF TIMBER-CF screws used in wood-to-wood connections in accordance with CSA Standard O86-14 and NBC 2015.
Engineering Letter

Product Information Table

Fastener Production Information and Stuff & Things
New products
Model No. Coating/Material Length (in.) Head Diameter (in.) Shank Diameter (in.) Drive Type Head Type Thread Length Point Type Packaging Qty.
SDCF221014 Yellow-Zinc Coated 10 1/4 0.59 0.23 T40 6-Lobe Flat Head with Nibs 9.65 Type-17 Point 250
SDCF221014-R50 Yellow-Zinc Coated 10 1/4 0.59 0.23 T40 6-Lobe Flat Head with Nibs 9.65 Type-17 Point 50
SDCF221134 Yellow-Zinc Coated 11 3/4 0.59 0.23 T40 6-Lobe Flat Head with Nibs 11.22 Type-17 Point 250
SDCF221134-R50 Yellow-Zinc Coated 11 3/4 0.59 0.23 T40 6-Lobe Flat Head with Nibs 11.22 Type-17 Point 50
SDCF221334 Yellow-Zinc Coated 13 3/4 0.59 0.23 T40 6-Lobe Flat Head with Nibs 13.19 Type-17 Point 250
SDCF221334-R50 Yellow-Zinc Coated 13 3/4 0.59 0.23 T40 6-Lobe Flat Head with Nibs 13.19 Type-17 Point 50
SDCF22434 Yellow-Zinc Coated 4 3/4 0.59 0.23 T40 6-Lobe Flat Head with Nibs 4.13 Type-17 Point 250
SDCF22434-R50 Yellow-Zinc Coated 4 3/4 0.59 0.23 T40 6-Lobe Flat Head with Nibs 4.13 Type-17 Point 50
SDCF22512 Yellow-Zinc Coated 5 1/2 0.59 0.23 T40 6-Lobe Flat Head with Nibs 4.92 Type-17 Point 250
SDCF22512-R50 Yellow-Zinc Coated 5 1/2 0.59 0.23 T40 6-Lobe Flat Head with Nibs 4.92 Type-17 Point 50
SDCF22614 Yellow-Zinc Coated 6 1/4 0.59 0.23 T40 6-Lobe Flat Head with Nibs 5.71 Type-17 Point 250
SDCF22614-R50 Yellow-Zinc Coated 6 1/4 0.59 0.23 T40 6-Lobe Flat Head with Nibs 5.71 Type-17 Point 50
SDCF22700 Yellow-Zinc Coated 7 0.59 0.23 T40 6-Lobe Flat Head with Nibs 6.5 Type-17 Point 250
SDCF22700-R50 Yellow-Zinc Coated 7 0.59 0.23 T40 6-Lobe Flat Head with Nibs 6.5 Type-17 Point 50
SDCF22858 Yellow-Zinc Coated 8 5/8 0.59 0.23 T40 6-Lobe Flat Head with Nibs 8.07 Type-17 Point 250
SDCF22858-R50 Yellow-Zinc Coated 8 5/8 0.59 0.23 T40 6-Lobe Flat Head with Nibs 8.07 Type-17 Point 50
SDCF271958 Yellow-Zinc Coated 19 5/8 0.73 0.28 T50 6-Lobe Flat Head with Nibs 18.31 Type-17 Point 100
SDCF271958-R25 Yellow-Zinc Coated 19 5/8 0.73 0.28 T50 6-Lobe Flat Head with Nibs 18.31 Type-17 Point 25
SDCF272358 Yellow-Zinc Coated 23 5/8 0.73 0.28 T50 6-Lobe Flat Head with Nibs 22.24 Type-17 Point 100
SDCF272358-R25 Yellow-Zinc Coated 23 5/8 0.73 0.28 T50 6-Lobe Flat Head with Nibs 22.24 Type-17 Point 25

Code Reports & Compliance

Drawings

PDF DWG DXF RFA IFC SAT

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