Simpson Strong Tie SDWH19400DB-R50 Strong-Drive Sdwh Timber Screw, 4 Inch Length, Coarse Thread, Large Hex Washer Head

Key Features

• Bold thread design that provides excellent holding power
• SawTooth (r) point ensures fast starts, reduces installation torque and eliminates the need for pre-drilling in most applications
• Under-head nibs that offer greater control when seating the head
• Large washer head provides maximum bearing area (0.65 in head Dia)
• Size identification on all SDWH screw heads
• Double-barrier coating provides a level of corrosion resistance that is equivalent to hot-dip galvanization (ASTM A153, Class D) in most non-marine environments

Strong-drive (r) sdwh timber-hex screws are designed for structural and general-purpose fastening applications where a hex head drive is preferred. these screws are ideal for the contractor and do-it-yourselfer alike. the sdwh timber-hex is code listed in iapmo ues er-192 and meets 2018 and 2021 irc (r) and ibc (r) code requirements for most common wood framing applications.