Simpson Strong-Tie 0.230" x 13-3/4" Strong-Drive SDCF Timber-CF Screw - Yellow Zinc | Qty. 50 CB Column Bases Zinc-Plated Finish: Protects against corrosion

Zinc-Plated Finish: Protects against corrosion in interior or dry environments

5-inch lally columns and 5

Inverted upper threads clear material away for flush seating

Precision Fit: Beam length tolerance of ±1/32" supports ease of installation

these screws are ideal for everything from basement framing to custom shelving or large furniture builds

Simpson Strong-Tie 0.230" x 13-3/4" Strong-Drive SDCF Timber-CF Screw - Yellow Zinc | Qty. 50 CB Column Bases Zinc-Plated Finish: Protects against corrosionThe Simpson Strong Tie Strong Drive SDCF Timber CF Screw is engineered for strength and reliability in cross laminated timber (CLT), mass timber, and other demanding wood construction applications. Available in multiple lengths and diameters, these fully threaded structural fasteners deliver exceptional withdrawal resistance and holding power, making them the trusted choice for large scale wood assemblies. Each screw features a flat head with