Simpson Strong-Tie SDCF27778
•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
•Fully-threaded shaft for high withdrawal resistance
•Deep 6-lobe recess for a secure drive (replacement bit: BIT50T-2-R1)
•Interior grade yellow-zinc coating
•Length: 7-7/8 in. (200 mm)
•Quantity: 250
Unmatched Strength and Versatility
TheSimpson SDCF27778 Strong-Drive SDCF TIMBER-CF Screwis your go-to solution for all your timber fastening needs. Engineered with precision, these screws are specifically designed to excel in:
- Cross-Laminated Timber Construction
- Mass Timber Construction
- General Interior Applications
Exceptional Features
With a diameter of0.390 inchesand a length of7-7/8 inches, these structural fasteners offer:
- Uncompromised Strength:Built to withstand the demands of heavy-duty applications.
- Clean Countersinking:The large flat head with underhead nibs ensures a smooth finish.
- Fast Starts:The proprietary unique point allows for quick and easy installation.
- Excellent Withdrawal Resistance:Designed to hold securely, providing peace of mind.
Durability You Can Rely On
Coated in ayellow-zinc finish, these screws are perfect for interior and dry applications, ensuring long-lasting performance. Each package contains250 screws, making them an economical choice for your projects.
Why Choose Simpson Strong-Tie?
Simpson Strong-Tie is a name you can trust in the industry. Our commitment to quality and innovation means you’re not just buying a screw; you’re investing in durability, reliability, and superior performance.


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