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 construction, 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 point provides fast starts and excellent holding power.
- Designed to be countersunk with head flush to wood surface
- Fully threaded to provide high withdrawal resistance
- 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
- Interior grade yellow-zinc coating
- Deep 6-lobe recess for a secure drive (T40 - replacement bit part number BIT40T-134-R2; T50 - replacement bit part number BIT50T-2-R1.)
- Beam reinforcement, wall-to-wall, floor-to-floor, support beams, butt joints
- Fastener Product Information: C-F-2023 (Fastening Systems), page 96
- Fastener Technical Data and Loads: C-F-2023TECHSUP, pages 140–144
Fastening Systems Catalog
A catalog including new product information as well as any applicable specification and installation instructions for Simpson Strong-Tie® fasteners and Quik Drive® systems.
Fastening Systems Technical Guide
A technical document featuring engineering information for structural fasteners featured in the C-F-2023 Fastening Systems Catalog.
Connectors and Fasteners for Mass Timber Construction Catalog
A catalog featuring connectors and fasteners for mass timber and CLT construction solutions.
Mass Timber Washer Strap (MTWS) for CLT
A flier providing product and installation information about the MTWS mass timber washer strap.
Strong-Drive® SDCF TIMBER-CF Screw For Mass Timber and CLT Fastening
A flier providing product and installation information about the Strong-Drive SDCF TIMBER-CF screw.
SDCF TIMBER-CF As Compression Reinforcement
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.
Strong-Drive® SDCF, SDCP, and SDHR screws in ICC-ES ESR-3046
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.
Installation Torque & Tools for SDCF TIMBER-CF, SDCP TIMBER-CP and SDHR COMBO-HEAD Screws
The purpose of this letter is to convey recommendations for installation of Strong-Drive SDCF TIMBER-CF Screws, SDCP TIMBER-CP Screws and SDHR COMBO-HEAD Screws.
MTW45-8 Mass-Timber Angled Washer Installed with Strong-Drive® SDCF Timber-CF Screws
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.
Product Information Table
|Model No.||Coating/Material||Length (in.)||Head Diameter (in.)||Shank Diameter (in.)||Drive Type||Head Type||Thread Length||Packaging Qty.|
|SDCF221014||Yellow-Zinc Coated||10 1/4||0.590||0.230||T40 6-Lobe||Flat Head with Nibs||9 3/4||250|
|SDCF221014-R50||Yellow-Zinc Coated||10 1/4||0.590||0.230||T40 6-Lobe||Flat Head with Nibs||9 3/4||50|
|SDCF221134||Yellow-Zinc Coated||11 3/4||0.590||0.230||T40 6-Lobe||Flat Head with Nibs||11 3/8||250|
|SDCF221134-R50||Yellow-Zinc Coated||11 3/4||0.590||0.230||T40 6-Lobe||Flat Head with Nibs||11 3/8||50|
|SDCF221334||Yellow-Zinc Coated||13 3/4||0.590||0.230||T40 6-Lobe||Flat Head with Nibs||13 3/8||250|
|SDCF221334-R50||Yellow-Zinc Coated||13 3/4||0.590||0.230||T40 6-Lobe||Flat Head with Nibs||13 3/8||50|
|SDCF22434||Yellow-Zinc Coated||4 3/4||0.590||0.230||T40 6-Lobe||Flat Head with Nibs||4 1/4||250|
|SDCF22434-R50||Yellow-Zinc Coated||4 3/4||0.590||0.230||T40 6-Lobe||Flat Head with Nibs||4 1/4||50|
|SDCF22512||Yellow-Zinc Coated||5 1/2||0.590||0.230||T40 6-Lobe||Flat Head with Nibs||5 1/8||250|
|SDCF22512-R50||Yellow-Zinc Coated||5 1/2||0.590||0.230||T40 6-Lobe||Flat Head with Nibs||5 1/8||50|
|SDCF22614||Yellow-Zinc Coated||6 1/4||0.590||0.230||T40 6-Lobe||Flat Head with Nibs||5 7/8||250|
|SDCF22614-R50||Yellow-Zinc Coated||6 1/4||0.590||0.230||T40 6-Lobe||Flat Head with Nibs||5 7/8||50|
|SDCF22700||Yellow-Zinc Coated||7||0.590||0.230||T40 6-Lobe||Flat Head with Nibs||6 5/8||250|
|SDCF22700-R50||Yellow-Zinc Coated||7||0.590||0.230||T40 6-Lobe||Flat Head with Nibs||6 5/8||50|
|SDCF22858||Yellow-Zinc Coated||8 5/8||0.590||0.230||T40 6-Lobe||Flat Head with Nibs||8 1/4||250|
|SDCF22858-R50||Yellow-Zinc Coated||8 5/8||0.590||0.230||T40 6-Lobe||Flat Head with Nibs||8 1/4||50|
|SDCF271100||Yellow-Zinc Coated||11||0.725||0.290||T50 6-Lobe||Flat Head with Nibs||10 3/4||150|
|SDCF271100-R30||Yellow-Zinc Coated||11||0.725||0.290||T50 6-Lobe||Flat Head with Nibs||10 3/4||30|
|SDCF271958||Yellow-Zinc Coated||19 5/8||0.725||0.290||T50 6-Lobe||Flat Head with Nibs||19 3/8||100|
|SDCF271958-R25||Yellow-Zinc Coated||19 5/8||0.725||0.290||T50 6-Lobe||Flat Head with Nibs||19 3/8||25|
|SDCF272358||Yellow-Zinc Coated||23 5/8||0.725||0.290||T50 6-Lobe||Flat Head with Nibs||23 3/8||100|
|SDCF272358-R25||Yellow-Zinc Coated||23 5/8||0.725||0.290||T50 6-Lobe||Flat Head with Nibs||23 3/8||25|
|SDCF27400||Yellow-Zinc Coated||4||0.725||0.290||T50 6-Lobe||Flat Head with Nibs||3 5/8||250|
|SDCF27400-R30||Yellow-Zinc Coated||4||0.725||0.290||T50 6-Lobe||Flat Head with Nibs||3 5/8||30|
|SDCF27614||Yellow-Zinc Coated||6 1/4||0.725||0.290||T50 6-Lobe||Flat Head with Nibs||6||250|
|SDCF27614-R30||Yellow-Zinc Coated||6 1/4||0.725||0.290||T50 6-Lobe||Flat Head with Nibs||6||30|
|SDCF27778||Yellow-Zinc Coated||7 7/8||0.725||0.290||T50 6-Lobe||Flat Head with Nibs||7 5/8||250|
|SDCF27778-R30||Yellow-Zinc Coated||7 7/8||0.725||0.290||T50 6-Lobe||Flat Head with Nibs||7 5/8||30|
|SDCF27912||Yellow-Zinc Coated||9 1/2||0.725||0.290||T50 6-Lobe||Flat Head with Nibs||9 1/8||250|
|SDCF27912-R30||Yellow-Zinc Coated||9 1/2||0.725||0.290||T50 6-Lobe||Flat Head with Nibs||9 1/8||30|
Code Reports & Compliance