text.skipToContent text.skipToNavigation

Strong-Drive® SDWS LOG Screw 

Strong-Drive® SDWS LOG Screw

Newly redesigned for faster starts and less torque while driving.

The Strong-Drive SDWS Log screw is a structural screw available in longer lengths and is designed for log-home construction and general interior applications. These 0.220"- and 0.195"-diameter structural fasteners require less torque to install than comparable fasteners. The large diameter head pulls logs down easily, eliminating the need to use extra washers. 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

  • New — Patented SawTooth™ point ensures fast starts, reduces installation torque and eliminates the need for predrilling in most applications
  • Low-profile head design makes countersinking easy (0.75" head dia.)
  • Serrated thread reduces log splitting and damage
  • Large washer head provides maximum bearing area
  • Deep 6-lobe T-40 recess reduces cam-out, making driving easier
  • Size identification on all SDWS screw heads

Applications

  • Log home construction and general interior applications

Product Includes

  • Replacement driver bit: BIT40T-134

Technical Information

  • For updated technical information, please refer to the Strong-Drive SDWS Log Screw Flier, F-F-SDWSLOG18.

Related Literature

Product Information Table

Fastener Production Information and Stuff & Things
New products
Model No. Coating/Material Length (in.) Head Diameter (in.) Shank Diameter (in.) Drive Type Head Type Thread Type Thread Length Point Type Color Packaging Qty. UPC
SDWS19600 E-coat® Electrocoating 6 0.750 0.195 T-40 6-Lobe Low Profile Head Serrated Threads 2 3/4 SawTooth™ Point Black 250 744039512508
SDWS19600-R50 E-coat® Electrocoating 6 0.750 0.195 T-40 6-Lobe Low Profile Head Serrated Threads 2 3/4 SawTooth™ Point Black 50 707392875871
SDWS19600-RP1 E-coat® Electrocoating 6 0.750 0.195 T-40 6-Lobe Low Profile Head Serrated Threads 2 3/4 SawTooth™ Point Black 1 707392893875
SDWS19712 E-coat® Electrocoating 7 1/2 0.750 0.195 T-40 6-Lobe Low Profile Head Serrated Threads 2 3/4 SawTooth™ Point Black 250 744039590902
SDWS19712-R50 E-coat® Electrocoating 7 1/2 0.750 0.195 T-40 6-Lobe Low Profile Head Serrated Threads 2 3/4 SawTooth™ Point Black 50 707392247531
SDWS19712-RP1 E-coat® Electrocoating 7 1/2 0.750 0.195 T-40 6-Lobe Low Profile Head Serrated Threads 2 3/4 SawTooth™ Point Black 1 707392794448
SDWS221000 E-coat® Electrocoating 10 0.750 0.220 T-40 6-Lobe Low Profile Head Serrated Threads 2 3/4 SawTooth™ Point Black 250 744039670109
SDWS221000-R50 E-coat® Electrocoating 10 0.750 0.220 T-40 6-Lobe Low Profile Head Serrated Threads 2 3/4 SawTooth™ Point Black 50 707392957997
SDWS221000-RP1 E-coat® Electrocoating 10 0.750 0.220 T-40 6-Lobe Low Profile Head Serrated Threads 2 3/4 SawTooth™ Point Black 1 707392827078
SDWS221100 E-coat® Electrocoating 11 0.750 0.220 T-40 6-Lobe Low Profile Head Serrated Threads 2 3/4 SawTooth™ Point Black 250 744039379200
SDWS221100-R50 E-coat® Electrocoating 11 0.750 0.220 T-40 6-Lobe Low Profile Head Serrated Threads 2 3/4 SawTooth™ Point Black 50 707392494515
SDWS221100-RP1 E-coat® Electrocoating 11 0.750 0.220 T-40 6-Lobe Low Profile Head Serrated Threads 2 3/4 SawTooth™ Point Black 1 707392113195
SDWS221200 E-coat® Electrocoating 12 0.750 0.220 T-40 6-Lobe Low Profile Head Serrated Threads 2 3/4 SawTooth™ Point Black 250 744039803408
SDWS221200-R50 E-coat® Electrocoating 12 0.750 0.220 T-40 6-Lobe Low Profile Head Serrated Threads 2 3/4 SawTooth™ Point Black 50 707392953937
SDWS221200-RP1 E-coat® Electrocoating 12 0.750 0.220 T-40 6-Lobe Low Profile Head Serrated Threads 2 3/4 SawTooth™ Point Black 1 707392133889
SDWS221500 E-coat® Electrocoating 15 0.750 0.220 T-40 6-Lobe Low Profile Head Serrated Threads 2 3/4 SawTooth™ Point Black 200 744039834907
SDWS221500-R50 E-coat® Electrocoating 15 0.750 0.220 T-40 6-Lobe Low Profile Head Serrated Threads 2 3/4 SawTooth™ Point Black 50 707392705765
SDWS221500-RP1 E-coat® Electrocoating 15 0.750 0.220 T-40 6-Lobe Low Profile Head Serrated Threads 2 3/4 SawTooth™ Point Black 1 707392244486
SDWS22800 E-coat® Electrocoating 8 0.750 0.220 T-40 6-Lobe Low Profile Head Serrated Threads 2 3/4 SawTooth™ Point Black 250 744039565405
SDWS22800-R50 E-coat® Electrocoating 8 0.750 0.220 T-40 6-Lobe Low Profile Head Serrated Threads 2 3/4 SawTooth™ Point Black 50 707392450351
SDWS22800-RP1 E-coat® Electrocoating 8 0.750 0.220 T-40 6-Lobe Low Profile Head Serrated Threads 2 3/4 SawTooth™ Point Black 1 707392588818
SDWS22900 E-coat® Electrocoating 9 0.750 0.220 T-40 6-Lobe Low Profile Head Serrated Threads 2 3/4 SawTooth™ Point Black 250 744039487608
SDWS22900-R50 E-coat® Electrocoating 9 0.750 0.220 T-40 6-Lobe Low Profile Head Serrated Threads 2 3/4 SawTooth™ Point Black 50 707392264071
SDWS22900-RP1 E-coat® Electrocoating 9 0.750 0.220 T-40 6-Lobe Low Profile Head Serrated Threads 2 3/4 SawTooth™ Point Black 1 707392618690

Product Information Table

Model No. Length (in.) Drive Type Head Diameter (in.) Head Type Thread Length Shank Diameter (in.) Coating/Material Color Packaging Quantity UPC
SDWS19600 6 T-40 6-Lobe 0.75 Low Profile Head 2 3/4 0.195 E-Coat™ Electrocoating Black 250 744039512508
SDWS19600-R50 6 T-40 6-Lobe 0.75 Low Profile Head 2 3/4 0.195 E-Coat™ Electrocoating Black 50 707392875871
SDWS19600-RP1 6 T-40 6-Lobe 0.75 Low Profile Head 2 3/4 0.195 E-Coat™ Electrocoating Black 1 707392893875
SDWS19712 7 1/2 T-40 6-Lobe 0.75 Low Profile Head 2 3/4 0.195 E-Coat™ Electrocoating Black 250 744039590902
SDWS19712-R50 7 1/2 T-40 6-Lobe 0.75 Low Profile Head 2 3/4 0.195 E-Coat™ Electrocoating Black 50 707392247531
SDWS19712-RP1 7 1/2 T-40 6-Lobe 0.75 Low Profile Head 2 3/4 0.195 E-Coat™ Electrocoating Black 1 707392794448
SDWS221000 10 T-40 6-Lobe 0.75 Low Profile Head 2 3/4 0.220 E-Coat™ Electrocoating Black 250 744039670109
SDWS221000-R50 10 T-40 6-Lobe 0.75 Low Profile Head 2 3/4 0.220 E-Coat™ Electrocoating Black 50 707392957997
SDWS221000-RP1 10 T-40 6-Lobe 0.75 Low Profile Head 2 3/4 0.220 E-Coat™ Electrocoating Black 1 707392827078
SDWS221100 11 T-40 6-Lobe 0.75 Low Profile Head 2 3/4 0.220 E-Coat™ Electrocoating Black 250 744039379200
SDWS221100-R50 11 T-40 6-Lobe 0.75 Low Profile Head 2 3/4 0.220 E-Coat™ Electrocoating Black 50 707392494515
SDWS221100-RP1 11 T-40 6-Lobe 0.75 Low Profile Head 2 3/4 0.220 E-Coat™ Electrocoating Black 1 707392113195
SDWS221200 12 T-40 6-Lobe 0.75 Low Profile Head 2 3/4 0.220 E-Coat™ Electrocoating Black 250 744039803408
SDWS221200-R50 12 T-40 6-Lobe 0.75 Low Profile Head 2 3/4 0.220 E-Coat™ Electrocoating Black 50 707392953937
SDWS221200-RP1 12 T-40 6-Lobe 0.75 Low Profile Head 2 3/4 0.220 E-Coat™ Electrocoating Black 1 707392133889
SDWS221500 15 T-40 6-Lobe 0.75 Low Profile Head 2 3/4 0.220 E-Coat™ Electrocoating Black 200 744039834907
SDWS221500-R50 15 T-40 6-Lobe 0.75 Low Profile Head 2 3/4 0.220 E-Coat™ Electrocoating Black 50 707392705765
SDWS221500-RP1 15 T-40 6-Lobe 0.75 Low Profile Head 2 3/4 0.220 E-Coat™ Electrocoating Black 1 707392244486
SDWS22800 8 T-40 6-Lobe 0.75 Low Profile Head 2 3/4 0.220 E-Coat™ Electrocoating Black 250 744039565405
SDWS22800-R50 8 T-40 6-Lobe 0.75 Low Profile Head 2 3/4 0.220 E-Coat™ Electrocoating Black 50 707392450351
SDWS22800-RP1 8 T-40 6-Lobe 0.75 Low Profile Head 2 3/4 0.220 E-Coat™ Electrocoating Black 1 707392588818
SDWS22900 9 T-40 6-Lobe 0.75 Low Profile Head 2 3/4 0.220 E-Coat™ Electrocoating Black 250 744039487608
SDWS22900-R50 9 T-40 6-Lobe 0.75 Low Profile Head 2 3/4 0.220 E-Coat™ Electrocoating Black 50 707392264071
SDWS22900-RP1 9 T-40 6-Lobe 0.75 Low Profile Head 2 3/4 0.220 E-Coat™ Electrocoating Black 1 707392618690

Load Tables

SDWS Log – Allowable Shear Loads
Douglas Fir-Larch and Southern Pine

SDWS Log – Allowable Shear Loads
Spruce-Pine-Fir and Hem-Fir

  1. Design values are based on full fastener embedment and the adjacent members are in contact with each other.
  2. Allowable loads are shown at the wood load duration factor of CD = 1.0. Loads may be increased for load duration up to a CD = 1.6.
  3. Tabulated values must be multiplied by all applicable adjustment factors per the NDS.
  1. Minimum fastener spacing requirements: 6" end distance, 1 7/16" edge distance, 5/8" between staggered rows of fasteners, 4" between nonstaggered rows of fasteners and 8" between fasteners in a row.
  2. Loads are for in-service moisture content less than or equal to 19% (CM=1.0).
  3. Loads are based on installation into the side grain of the wood member with the screw axis perpendicular to the face of the wood member.

SDWS Log – 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 must penetrate into the side grain of the main member.
  3. Tabulated reference withdrawal design values (CD=1.0), W and WMax, 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 1.5" side member.
  3. Loads are for in-service moisture content less than or equal to 19% (CM=1.0).

Wood Species Combinations in the Specific Gravity Range 0.35 to 0.41

Allowable Loads for Strong-Drive SDWS LOG Screws with Expanded Specific Gravity Options

Allowable load tables provide shear and withdrawal capacities for wood species with an assigned specific gravity of 0.35 to 0.41. Wood species with a specific gravity within this range are provided below.

  1. Specific gravity as assigned in NDS-2012 Table 11.3.3A.

SDWS Log – Allowable Lateral Loads in the Specific Gravity Range 0.35 to 0.41

  1. Design values are based on full fastener embedment and the adjacent members are in contact with each other.
  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: 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 less than or equal to 19% (CM=1.0).
  2. The load tables are based on testing in accordance with ICC-ES AC233, with an applied factor of safety of 5.0.

SDWS Log – Allowable Withdrawal Loads in the Specific Gravity Range 0.35 to 0.41

  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 must penetrate into the side grain of the main member.
  3. Tabulated reference withdrawal design values, W and WMax, 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 as referenced in the IBC or IRC.
  4. Embedded thread length is that portion held in the main member including the screw point.
  1. Values are based on the lesser of withdrawal from the main member or pull-through of a 1.5" side member.
  2. For in-service moisture content less than or equal to 19% (CM=1.0).
  3. The load tables are based on testing in accordance with ICC-ES AC233, with an applied factor of safety of 5.0.

Drawings

Part Orthographic Perspective
SDWSNone None
SDWS19600None None
SDWS19712None None
SDWS221000None None
SDWS221100None None
SDWS221200None None
SDWS221500None None
SDWS22800None None