Simpson Strong-Tie SDCF22512-R50 Strong-Drive SDCF TIMBER-CF Screw, 0.315-in. x 5-1/2-in. T40, Yellow Zinc, 50-Pack

• 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: BIT40T-134-R2)
• Interior grade yellow-zinc coating
• Length: 5-1/2 in. (140 mm)
• Quantity: 50

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-in. 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 and excellent withdrawal resistance. For interior and dry applications only.

• 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: BIT40T-134-R2)
• Interior grade yellow-zinc coating
• Length: 5-1/2 in. (140 mm)
• Quantity: 50