0.220" x 4" Strong-Tie SDWS22400DBBMB Timber Screw - Double Barrier Coating, Black | Qty. 250 HCJTZ Two versions of the MASA

Two versions of the MASA are available the standard MASA for installation on standard forms and the MASAP for panelized forms

Precision Fit: Designed to accommodate standard lumber sizes while maintaining a snug

perfect for DIYers tackling framing or heavy wood connections indoors

Drive the RSH into structural steel (up to 1/8" thick) until the hanger sits flush

0.220" x 4" Strong-Tie SDWS22400DBBMB Timber Screw - Double Barrier Coating, Black | Qty. 250 HCJTZ Two versions of the MASASimpson Strong Tie SDWS Timber Screws (Exterior Grade) are your go to fasteners when strength and weather resistance matter. Ideal for outdoor framing, landscaping, or heavy duty builds, these structural wood screws help DIYers get pro level results without the need for pre drilling. Coated with a high performance Double Barrier finish, they resist corrosion from rain, moisture, and treated lumber. The large washer head adds serious clamping power,