#12 x 4" T27 DWP Flat Head Wood Screw - 305 Stainless, Pkg 800 GDPS Gas Actuated Step Shank Pins W/ Fuel Cell Box-thread design - reduces torque

Box-thread design - reduces torque and increases driving efficiency

Whether you're building a new deck staircase or reinforcing an existing structure

Engineered Wood Construction: Compatible with LVL

Simpson Strong-Tie fixed depth drill bit to be used with DIAB37 and DIABL37

#12 x 4" T27 DWP Flat Head Wood Screw - 305 Stainless, Pkg 800 GDPS Gas Actuated Step Shank Pins W/ Fuel Cell Box-thread design - reduces torqueThe Simpson Strong Drive DWP Wood SS screw is a powerful, load rated fastening solution for deck, dock and general exterior applications where extra corrosion protection and load specifications are required. The #12 and #14 Strong Drive DWP Wood SS flat head screws are structural fasteners that have been tested in accordance with ICC ES acceptance criteria AC233 and are load rated for shear, pull through and withdrawal resistance. With its specially