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Strong-Drive® DWP WOOD SS Screw 

Fasteners for the Timber Drive™ System

This product's information may differ depending on the category of use. You are currently viewing details related to Fasteners for the Timber Drive™ System. You can also view product information related to the category: Strong-Drive® Exterior Wood Screws

The 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 designed sharp-point and unique box-threads, the DWP WOOD SS is a great solution for exterior engineered structural connections, such as on docks, boardwalks and decks near water or where they will be exposed to high or severe corrosion. Choose Type 316 stainless steel for seaside and coastal environments.

Key Features

  • Unique “box” thread design with raised-ridge technology greatly reduces driving torque, which allows you to drive more screws on a single battery charge
  • Specially designed sharp point penetrates hard wood products with ease
  • Use with wood, engineered wood and polymer materials
  • 6-lobe drive provides a secure bit fit resulting in an easy drive and long bit life
  • Choose Type 316 stainless steel for seaside applications

Applications

  • Decking, Docks and Boardwalks; Engineered General Exterior

Product Includes

  • 6-lobe bit included: BIT27T-2-R2

Related Links

Catalog Pages

Related Literature

Fastening Systems Catalog
C-F-2023
A catalog including new product information as well as any applicable specification and installation instructions for Simpson Strong-Tie® fasteners and Quik Drive® systems.
Catalog
Fastening Systems Technical Guide
C-F-2023TECHSUP
A technical document featuring engineering information for structural fasteners featured in the C-F-2023 Fastening Systems Catalog.
Catalog
Guía técnica de los sistemas de sujeción
C-F-2023TECHSP
Un documento técnico información de ingeniería para los sujetadores estructurales que se incluyen en el C-F-2019SP Catálogo de sistemas de sujeción.
Catalog
Sistemas de sujeción
C-F-2023SP
Catálogo que incluye información sobre productos nuevos y las instrucciones de instalación y especificaciones correspondientes para los sujetadores Simpson Strong-Tie® y los sistemas Quik Drive®.
Catalog
Deck Connection and Fastening Guide
F-DECKCODE22
A guide to deck building and for retrofitting safer, longer-lasting outdoor decks, with 2018 and 2021 IRC/IBC code-compliant solutions for using the latest anchors, connectors and fasteners.
Product Guide
Now Available — Load-Rated DWP WOOD SS Screws
F-F-DWP24
A flier providing features, benefits and load tables for the DWP Wood SS screw lineup.
Flier
We Have a Match for Any Deck Board — Painted-Head, Stainless-Steel Deck Screw Solutions
S-F-PNTHDSS23
A sales flier promoting Simpson Strong-Tie® painted-head, stainless-steel deck-fastener solutions.
Flier

Product Information Table

Fastener Production Information and Stuff & Things
Model No. Coating/Material Screw Size Length (in.) Head Diameter (in.) Drive Type Head Type Thread Type Point Type Approx. Count per Lb. Packaging Qty.
S12250WP5 Type 305 Stainless Steel #12 2 1/2 0.435 T27 6-Lobe Flat Head Box Threads Sharp Point 56 5 lb.
S12250WPB Type 305 Stainless Steel #12 2 1/2 0.435 T27 6-Lobe Flat Head Box Threads Sharp Point 56 1750
S12300WP1 Type 305 Stainless Steel #12 3 0.435 T27 6-Lobe Flat Head Box Threads Sharp Point 48 1 lb.
S12300WP5 Type 305 Stainless Steel #12 3 0.435 T27 6-Lobe Flat Head Box Threads Sharp Point 48 5 lb.
S12300WPB Type 305 Stainless Steel #12 3 0.435 T27 6-Lobe Flat Head Box Threads Sharp Point 48 1500
S12350WP1 Type 305 Stainless Steel #12 3 1/2 0.435 T27 6-Lobe Flat Head Box Threads Sharp Point 42 1 lb.
S12350WP5 Type 305 Stainless Steel #12 3 1/2 0.435 T27 6-Lobe Flat Head Box Threads Sharp Point 42 5 lb.
S12350WPB Type 305 Stainless Steel #12 3 1/2 0.435 T27 6-Lobe Flat Head Box Threads Sharp Point 42 1000
S12400WP1 Type 305 Stainless Steel #12 4 0.435 T27 6-Lobe Flat Head Box Threads Sharp Point 36 1 lb.
S12400WP5 Type 305 Stainless Steel #12 4 0.435 T27 6-Lobe Flat Head Box Threads Sharp Point 36 5 lb.
S12400WPB Type 305 Stainless Steel #12 4 0.435 T27 6-Lobe Flat Head Box Threads Sharp Point 36 800
S12450WP1 Type 305 Stainless Steel #12 4 1/2 0.435 T27 6-Lobe Flat Head Box Threads Sharp Point 32 1 lb.
S12450WP5 Type 305 Stainless Steel #12 4 1/2 0.435 T27 6-Lobe Flat Head Box Threads Sharp Point 32 5 lb.
S12450WPB Type 305 Stainless Steel #12 4 1/2 0.435 T27 6-Lobe Flat Head Box Threads Sharp Point 32 750
S12500WP1 Type 305 Stainless Steel #12 5 0.435 T27 6-Lobe Flat Head Box Threads Sharp Point 29 1 lb.
S12500WP5 Type 305 Stainless Steel #12 5 0.435 T27 6-Lobe Flat Head Box Threads Sharp Point 29 5 lb.
S12500WPB Type 305 Stainless Steel #12 5 0.435 T27 6-Lobe Flat Head Box Threads Sharp Point 29 500
S14400WP5 Type 305 Stainless Steel #14 4 0.460 T27 6-Lobe Flat Head Box Threads Sharp Point 26 5 lb.
S14400WPB Type 305 Stainless Steel #14 4 0.460 T27 6-Lobe Flat Head Box Threads Sharp Point 26 700
T12250WP1 Type 316 Stainless Steel #12 2 1/2 0.435 T27 6-Lobe Flat Head Box Threads Sharp Point 56 1 lb.
T12250WP5 Type 316 Stainless Steel #12 2 1/2 0.435 T27 6-Lobe Flat Head Box Threads Sharp Point 56 5 lb.
T12250WPB Type 316 Stainless Steel #12 2 1/2 0.435 T27 6-Lobe Flat Head Box Threads Sharp Point 56 1750
T12300WP1 Type 316 Stainless Steel #12 3 0.435 T27 6-Lobe Flat Head Box Threads Sharp Point 48 1 lb.
T12300WP5 Type 316 Stainless Steel #12 3 0.435 T27 6-Lobe Flat Head Box Threads Sharp Point 48 5 lb.
T12300WPB Type 316 Stainless Steel #12 3 0.435 T27 6-Lobe Flat Head Box Threads Sharp Point 48 1500
T12350WP1 Type 316 Stainless Steel #12 3 1/2 0.435 T27 6-Lobe Flat Head Box Threads Sharp Point 42 1 lb.
T12350WP5 Type 316 Stainless Steel #12 3 1/2 0.435 T27 6-Lobe Flat Head Box Threads Sharp Point 42 5 lb.
T12350WPB Type 316 Stainless Steel #12 3 1/2 0.435 T27 6-Lobe Flat Head Box Threads Sharp Point 42 1000
T12400WP1 Type 316 Stainless Steel #12 4 0.435 T27 6-Lobe Flat Head Box Threads Sharp Point 36 1 lb.
T12400WP5 Type 316 Stainless Steel #12 4 0.435 T27 6-Lobe Flat Head Box Threads Sharp Point 36 5 lb.
T12400WPB Type 316 Stainless Steel #12 4 0.435 T27 6-Lobe Flat Head Box Threads Sharp Point 36 750
T12450WP1 Type 316 Stainless Steel #12 4 1/2 0.435 T27 6-Lobe Flat Head Box Threads Sharp Point 32 1 lb.
T12450WP5 Type 316 Stainless Steel #12 4 1/2 0.435 T27 6-Lobe Flat Head Box Threads Sharp Point 32 5 lb.
T12450WPB Type 316 Stainless Steel #12 4 1/2 0.435 T27 6-Lobe Flat Head Box Threads Sharp Point 32 750
T12500WP1 Type 316 Stainless Steel #12 5 0.435 T27 6-Lobe Flat Head Box Threads Sharp Point 29 1 lb.
T12500WP5 Type 316 Stainless Steel #12 5 0.435 T27 6-Lobe Flat Head Box Threads Sharp Point 29 5 lb.
T12500WPB Type 316 Stainless Steel #12 5 0.435 T27 6-Lobe Flat Head Box Threads Sharp Point 29 500
T12600WP1 Type 316 Stainless Steel #12 6 0.435 T27 6-Lobe Flat Head Box Threads Sharp Point 24 1 lb.
T12600WP5 Type 316 Stainless Steel #12 6 0.435 T27 6-Lobe Flat Head Box Threads Sharp Point 24 5 lb.
T12600WPB Type 316 Stainless Steel #12 6 0.435 T27 6-Lobe Flat Head Box Threads Sharp Point 24 600
T14300WP1 Type 316 Stainless Steel #14 3 0.460 T27 6-Lobe Flat Head Box Threads Sharp Point 36 1 lb.
T14300WP5 Type 316 Stainless Steel #14 3 0.460 T27 6-Lobe Flat Head Box Threads Sharp Point 36 5 lb.
T14300WPB Type 316 Stainless Steel #14 3 0.460 T27 6-Lobe Flat Head Box Threads Sharp Point 36 1000
T14350WP1 Type 316 Stainless Steel #14 3 1/2 0.460 T27 6-Lobe Flat Head Box Threads Sharp Point 33 1 lb.
T14350WP5 Type 316 Stainless Steel #14 3 1/2 0.460 T27 6-Lobe Flat Head Box Threads Sharp Point 33 5 lb.
T14350WPB Type 316 Stainless Steel #14 3 1/2 0.460 T27 6-Lobe Flat Head Box Threads Sharp Point 33 750
T14400WP1 Type 316 Stainless Steel #14 4 0.460 T27 6-Lobe Flat Head Box Threads Sharp Point 26 1 lb.
T14400WP5 Type 316 Stainless Steel #14 4 0.460 T27 6-Lobe Flat Head Box Threads Sharp Point 26 5 lb.
T14400WPB Type 316 Stainless Steel #14 4 0.460 T27 6-Lobe Flat Head Box Threads Sharp Point 26 700
T14500WP1 Type 316 Stainless Steel #14 5 0.460 T27 6-Lobe Flat Head Box Threads Sharp Point 21 1 lb.
T14500WP5 Type 316 Stainless Steel #14 5 0.460 T27 6-Lobe Flat Head Box Threads Sharp Point 21 5 lb.
T14500WPB Type 316 Stainless Steel #14 5 0.460 T27 6-Lobe Flat Head Box Threads Sharp Point 21 500
T14600WP1 Type 316 Stainless Steel #14 6 0.460 T27 6-Lobe Flat Head Box Threads Sharp Point 18 1 lb.
T14600WP5 Type 316 Stainless Steel #14 6 0.460 T27 6-Lobe Flat Head Box Threads Sharp Point 18 5 lb.
T14600WPB Type 316 Stainless Steel #14 6 0.460 T27 6-Lobe Flat Head Box Threads Sharp Point 18 500

Load Tables

DWP WOOD SS Screw - Allowable Shear Loads

Size x L (in.) Model No. Thread Length (in.) DFL/SP Allowable Shear Loads (lb.) SPF/HF Allowable Shear Loads (lb.)
Side Member Thickness (in.) Side Member Thickness (in.)
1.5 2 2.5 3 3.5 4 4.5 1.5 2 2.5 3 3.5 4 4.5
#12 x 2 1/2 T12250WP, S12250WP 2.00 140 - - - - - - 105 - - - - - -
#12 x 3 T12300WP, S12300WP 2.2 185 - - - - - - 135 - - - - - -
#12 x 3 1/2 T12350WP, S12350WP 2.5 205 190 - - - - - 160 160 - - - - -
#12 x 4 T12400WP, S12400WP 2.8 205 205 205 - - - - 160 160 160 - - - -
#12 x 4 1/2 T12450WP, S12450WP 3.2 205 205 205 205 - - - 160 160 160 160 - - -
#12 x 5 T12500WP, S12500WP 3.5 205 205 205 205 205 - - 160 160 160 160 160 - -
#12 x 6 T12600WP, S12600WP 4.0 205 205 205 205 205 180 180 160 160 160 160 160 150 150
#14 x 3 T14300WP, S14300WP 2.1 220 - - - - - - 170 - - - - - -
#14 x 3 1/2 T14350WP1, S14350WP 2.3 230 220 - - - - - 180 180 - - - - -
#14 x 4 T14400WP1, S14400WP 2.8 230 220 220 - - - - 180 180 175 - - - -
#14 x 5 T14500WP, S14500WP 3.5 230 220 220 220 220 - - 180 180 175 175 165 - -
#14 x 6 T14600WP, S14600WP 4.2 230 220 220 220 210 210 210 180 180 175 175 165 165 165
  1. All applications are based on full penetration into the main member. Full penetration is the screw length minus the side member thickness.
  2. Allowable loads are shown at the wood load duration factor of CD = 1.0. Loads may be increased for load duration per the building code up to a CD = 1.6.
  3. Tabulated values must be multiplied by all applicable adjustment factors per the NDS.
  4. For in-service moisture content greater than 19%, use CM = 0.7.
  5. The tabulated loads are applicable to Type 305 and Type 316 stainless-steel flat-head screw model numbers.
  6. Loads are based on installation into the side grain of the wood with the screw axis perpendicular to the face of the member.
  7. Minimum fastener spacing requirements to achieve loads: 6" end distance, 1 7/16" edge distance.
  8. The above loads are based on tests of connections with main and side members of the same species.

DWP WOOD SS Screw - Allowable Withdrawal and Pull-Through Loads

Size x L (in.) Model No. Thread Length (in.) Head Diameter (in.) Allowable Screw Tension Loads (lb.) Reference Withdrawal Loads
W (lb./in.)		 Reference Pull-Through Loads for 1 1/2"
Side Member, WH (lb.)
DFL/SP SPF/HF DFL/SP SPF/HF
#12 x 2 1/2 T12250WP, S12250WP 2.0 0.44 605 130 100 180 150
#12 x 3 T12300WP, S12300WP 2.2 0.44 605 130 100 180 150
#12 x 3 1/2 T12350WP, S12350WP 2.5 0.44 605 130 100 180 150
#12 x 4 T12400WP, S12400WP 2.8 0.44 605 130 100 180 150
#12 x 4 1/2 T12450WP, S12450WP 3.2 0.44 605 130 100 180 150
#12 x 5 T12500WP, S12500WP 3.5 0.44 605 130 100 180 150
#12 x 6 T12600WP, S12600WP 4.0 0.44 605 130 100 180 150
#14 x 3 T14300WP, S14300WP 2.1 0.46 775 145 100 200 155
#14 x 3 1/2 T14350WP1, S14350WP 2.3 0.46 775 145 100 200 155
#14 x 4 T14400WP1, S14400WP 2.8 0.46 775 145 100 200 155
#14 x 5 T14500WP, S14500WP 3.5 0.46 775 145 100 200 155
#14 x 6 T14600WP, S14600WP 4.2 0.46 775 145 100 200 155
  1. The tabulated allowable screw tension value is the tensile strength of the steel screw and may not be multiplied by any adjustment factors.
  2. The tabulated reference withdrawal design value, W, is in pounds per inch of the thread penetration into the side grain of the main member.
  3. The tabulated reference pull-through design value, WH, is the allowable load for the fastener head pull-through for a minimum 1 1/2"-thick side member.
  4. Tabulated reference withdrawal and pull-through design values, W and WH, are shown at a load duration factor CD = 1.0 and a wet service factor CM = 1.0. Loads may be increased for load duration per the building code up to a CD = 1.6. Tabulated values must be multiplied by all applicable adjustment factors from the NDS as referenced in the IBC or IRC.
  5. Embedded thread length is that portion held in the main member including the screw point.
  6. For in-service moisture content greater than 19%, use CM = 0.7.
  7. For #12 screws subject to axial loading only, use the following minimum dimensions: end distance = 2 3/8", edge distance = 1", spacing parallel to grain = 1 5/8", spacing perpendicular to grain = 1".
  8. For #14 screws subject to axial loading only, use the following minimum dimensions: end distance = 2 3/4", edge distance = 1 1/8", spacing parallel to grain = 2", spacing perpendicular to grain = 1 1/8".

Code Reports & Compliance

Drawings

PDF DWG DXF RFA IFC SAT

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