text.skipToContent text.skipToNavigation

Strong-Drive® SDWH TIMBER-HEX Screw 

Strong-Drive® SDWH TIMBER-HEX Screw

Ideal for structural and general-purpose fastening applications where a hex-head drive is preferred. The Strong-Drive SDWH Timber-Hex screw is ideal for the contractor and do-it-yourselfer alike. It is code listed under IAPMO-UES ER-192 and meets 2012 and 2015 IRC® and IBC® code requirements for several common wood framing applications.

Key Features

  • Bold thread design that provides superior holding power
  • Patented 4CUT™ tip ensures fast starts, reduces installation torque and eliminates the need for predrilling in most applications
  • Under-head nibs that offer greater control when seating the head
  • Large washer head provides maximum bearing area (0.64" head dia.)
  • Size identification on all SDWH screw heads
  • 5/16" hex drive (replacement driver bit — BITHEXR516-134)

Double-barrier coating provides corrosion resistance equivalent to hot-dip galvanization, making it suitable for certain exterior and preservative-treated wood applications, as described in the evaluation report.

Applications

  • Structural wood-to-wood connections including ledgers

Product Includes

  • Retail and mini-bulk packs include one 5/16" hex driver bit; bulk packs include two driver bits

Related Literature

Product Information Table

Model No. Length (in.) Drive Type Head Diameter (in.) Head Type Thread Length Shank Diameter (in.) Point Type Coating/Material Packaging Quantity
SDWH191000DB 10 5/16 in. Hex 0.64 Large Hex Washer Head 2 3/4 0.195 4-Cut Point Double-Barrier Coating 250
SDWH191000DB-R50 10 5/16 in. Hex 0.64 Large Hex Washer Head 2 3/4 0.195 4-Cut Point Double-Barrier Coating 50
SDWH191000DBRC12 10 5/16 in. Hex 0.64 Large Hex Washer Head 2 3/4 0.195 4-Cut Point Double-Barrier Coating 12
SDWH19300DB 3 5/16 in. Hex 0.64 Large Hex Washer Head 1 1/2 0.195 4-Cut Point Double-Barrier Coating 1000
SDWH19300DBMB 3 5/16 in. Hex 0.64 Large Hex Washer Head 1 1/2 0.195 4-Cut Point Double-Barrier Coating 250
SDWH19300DB-R50 3 5/16 in. Hex 0.64 Large Hex Washer Head 1 1/2 0.195 4-Cut Point Double-Barrier Coating 50
SDWH19300DB-RC12 3 5/16 in. Hex 0.64 Large Hex Washer Head 1 1/2 0.195 4-Cut Point Double-Barrier Coating 12
SDWH19400DB 4 5/16 in. Hex 0.64 Large Hex Washer Head 2 3/8 0.195 4-Cut Point Double-Barrier Coating 800
SDWH19400DBMB 4 5/16 in. Hex 0.64 Large Hex Washer Head 2 3/8 0.195 4-Cut Point Double-Barrier Coating 250
SDWH19400DB-R50 4 5/16 in. Hex 0.64 Large Hex Washer Head 2 3/8 0.195 4-Cut Point Double-Barrier Coating 50
SDWH19400DB-RC12 4 5/16 in. Hex 0.64 Large Hex Washer Head 2 3/8 0.195 4-Cut Point Double-Barrier Coating 12
SDWH19600DB 6 5/16 in. Hex 0.64 Large Hex Washer Head 2 3/8 0.195 4-Cut Point Double-Barrier Coating 600
SDWH19600DBMB 6 5/16 in. Hex 0.64 Large Hex Washer Head 2 3/8 0.195 4-Cut Point Double-Barrier Coating 250
SDWH19600DB-R50 6 5/16 in. Hex 0.64 Large Hex Washer Head 2 3/8 0.195 4-Cut Point Double-Barrier Coating 50
SDWH19600DB-RC12 6 5/16 in. Hex 0.64 Large Hex Washer Head 2 3/8 0.195 4-Cut Point Double-Barrier Coating 12
SDWH19800DB 8 5/16 in. Hex 0.64 Large Hex Washer Head 2 3/8 0.195 4-Cut Point Double-Barrier Coating 500
SDWH19800DBMB 8 5/16 in. Hex 0.64 Large Hex Washer Head 2 3/8 0.195 4-Cut Point Double-Barrier Coating 250
SDWH19800DB-R50 8 5/16 in. Hex 0.64 Large Hex Washer Head 2 3/8 0.195 4-Cut Point Double-Barrier Coating 50
SDWH19800DB-RC12 8 5/16 in. Hex 0.64 Large Hex Washer Head 2 3/8 0.195 4-Cut Point Double-Barrier Coating 12
    These coated fasteners possess a level of corrosion resistance that makes them suitable for use in some exterior and corrosive environments and with some preservative-treated woods. For applications in higher-exposure applications, consider type-300 series stainless-steel fasteners for superior corrosion resistance. See additional important information before selecting a fastener for a specific application.

Load Tables

SDWH — Allowable Shear Loads — Douglas Fir-Larch and Southern Pine Lumber

See footnotes below.

SDWH — Allowable Shear Loads — Spruce-Pine-Fir and Hem-Fir Lumber

  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. Tabulated values must be multiplied by all applicable adjustment factors per the NDS.
  3. Minimum fastener spacing requirements to achieve table loads: 6" end distance, 1 7/16" edge distance, 5/8" between staggered rows of fasteners, 4" between non-staggered rows of fasteners and 8" between fasteners in a row.
  1. For in-service moisture content greater than 19%, use CM = 0.7.
  2. Loads are based on installation into the side grain of the wood with the screw axis perpendicular to the face of the member.

SDWH — Allowable Withdrawal Loads — Douglas Fir-Larch, Southern Pine, Spruce-Pine-Fir and Hem-Fir Lumber

  1. The tabulated reference withdrawal design value, W, is in pounds per inch of the thread penetration into the side grain of the main member.
  2. The tabulated reference withdrawal design value, WMax, is in pounds where the entire thread length must penetrate into the side grain of the main member.
  3. Tabulated reference withdrawal design values, W and WMax, are shown at a CD = 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.
  1. Embedded thread length is that portion held in the main member including the screw point.
  2. Values are based on the lesser of withdrawal from the main member or pull-through of a 1 1/2" side member.
  3. For in-service moisture content greater than 19%, use CM = 0.7.

SDWH — 2012 and 2015 IRC Compliant Spacing for a Sawn Lumber Deck Ledger to Rim Board

  1. SDWH screw spacing values are equivalent to 2012/2015 IRC table R507.2. The table above also provides SDWH screw spacing for a wider range of materials commonly used for rim board, and an alternate loading condition as required by some jurisdictions.
  2. Solid-sawn rim board shall be Spruce-Pine-Fir, Hem-Fir, Douglas Fir-Larch, or Southern Pine species. Ledger shall be Hem-Fir, Douglas Fir-Larch, or Southern Pine species.
  3. Fastener spacings are based on the lesser of single fastener ICCES AC233 testing of the Strong-Drive SDWH screw with a safety factor of 5.0 or ICC-ES AC13 assembly testing with a factor of safety of 5.0. Spacing includes NDS wet service factor adjustment.
  1. Rows of screws shall be vertically offset and evenly staggered. Screws shall be placed 1 1/2" to 2" from the top and bottom of the ledger or rim board with 3" minimum and 6" maximum between rows and spaced per the table. End screws shall be located 6" from the end and at 1 1/2" to 2" from the bottom of the ledger. For screws located at least 2" but less than 6" from the end, use 50% of the load per screw and 50% of the table spacing between the end screw and the adjacent screw, and for screws located between 2" and 4" from the end, predrill using a 1.8" drill.
  2. Structural sheathing between the ledger and rim board shall be a maximum of 1/2" thick and fastened per code.

See additional Load Tables, Technical Data and Installation Instructions for the Strong-Drive® SDWH Timber-Hex screw

Drawings

Part Orthographic Perspective
SDWHNone None
SDWH191000None None
SDWH19300
SDWH19300 top view
DWG DXF
SDWH19300 left view
DWG DXF
None
SDWH19400None None
SDWH19600None None
SDWH19800None None