0.220" x 4" Strong-Tie SDWS22400 Log Screw - E-Coat, Pkg 250 U/HU I-Joist & SCL Hangers it becomes an expanding foam

it becomes an expanding foam that provides a flexible seal in leaking and non-leaking cracks

and designers seeking dependable connection reinforcement

Whether you’re installing metal roofing

reliable support for angled joist connections in wood construction

Steel panel attachment

0.220" x 4" Strong-Tie SDWS22400 Log Screw - E-Coat, Pkg 250 U/HU I-Joist & SCL Hangers it becomes an expanding foamSimpson Strong Tie SDWS Timber Screws (Interior Grade) are made for serious holding power in your indoor wood to wood connections. Whether you're framing interior walls, building shelves, or assembling custom wood structures, these structural screws offer dependable strength without the hassle of pre drilling. With their aggressive thread design and large washer style head, these screws drive quickly and hold tightly, perfect for basement builds,