Simpson Strong-Tie SDCF271958-R25 19-5/8" 0.73" Head Diameter 0.28" Shank Diameter T50 6-Lobe Drive Flat Head with Nibs 18.31" Thread Length Type-17 Point Yellow-Zinc Coated Strong-Drive® SDCF TIMBER-CF Screw (25 ct)
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 0.394"-diameter structural fasteners provide uncompromised strength for these demanding applications. The large flat head with under-head nibs provides for clean countersinking. The yellow zinc, fully-threaded screw, with a proprietary unique point, provides fast starts and excellent withdrawal resistance. For interior and dry applications only.
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