0.390" x 31-1/2" Strong-Drive SDCFC Timber-CF Screw - Yellow Zinc, Pkg 50 HGLT/HGLTV Heavy Duty I-Joist & SCL Hangers Floor sheathing over cold-formed steel

Floor sheathing over cold-formed steel joists

Lumber Size: Intended for use with 3-1/2X beams and 6x posts/columns

1/4" hex washer head provides excellent driving stability

Projects requiring ledger attachment that bypasses non-structural veneer

0.390" x 31-1/2" Strong-Drive SDCFC Timber-CF Screw - Yellow Zinc, Pkg 50 HGLT/HGLTV Heavy Duty I-Joist & SCL Hangers Floor sheathing over cold-formed steelThe Simpson Strong Tie Strong Drive SDCFC Timber CFC Screw is built tough for wood projects like mass timber, cross laminated timber (CLT), or other heavy framing jobs. These extra long screws sink in smooth and stay strong. The compact cylinder head sits flush with the surface, giving your project a clean finish without bulky hardware sticking out. The fully threaded design grabs tight for maximum holding power, while the sharp tip starts fast and