The Strong-Drive SDWS Timber (Interior Grade) screw – formerly, the SDWS Log screw – is a structural wood screw available in a variety of lengths and is engineered for structural wood-to-wood and wood-to-EWP connections, including cross-laminated Timber (CLT), mass timber, log-home construction, structural insulated panels (SIPs) and general interior applications. These 0.195''- and 0.220''-diameter structural fasteners install faster and easier than comparable lag screws, and the large-diameter washer head pulls members down easily, eliminating the need to use extra washers. It is code listed in IAPMO-UES ER-192 and meets 2018, 2021 and 2024 IRC and IBC code requirements for most common wood framing applications.
Key Features
- SawTooth® point ensures fast starts, reduces installation torque and eliminates the need for predrilling in most applications
- Serrated thread reduces splitting and damage
- Large, low-profile washer head with nibs provides maximum bearing area and makes countersinking easy
- 6-lobe, T40 drive provides positive engagement that makes the screw easy to drive and improves bit life (replacement driver bit: BIT40T-134-R2)
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Item # |
Item Name |
Price |
|---|---|---|
| SDWS191000-R50 | N/A 0.195 x 10" (3" Thread Length) Simpson Strong-Drive® SDWS™ Timber Screw (Interior Grade), T40 6-Lobe, E-coat® Electrocoating, Black, 50/pk | {QUOTE} |
| SDWS191100 | N/A 0.195 x 11" (3" Thread Length) Simpson Strong-Drive® SDWS™ Timber Screw (Interior Grade), T40 6-Lobe, E-coat® Electrocoating, Black, 250/pk | {QUOTE} |
| SDWS191100-R50 | N/A 0.195 x 11" (3" Thread Length) Simpson Strong-Drive® SDWS™ Timber Screw (Interior Grade), T40 6-Lobe, E-coat® Electrocoating, Black, 50/pk | {QUOTE} |
| SDWS191200 | N/A 0.195 x 12" (3" Thread Length) Simpson Strong-Drive® SDWS™ Timber Screw (Interior Grade), T40 6-Lobe, E-coat® Electrocoating, Black, 250/pk | {QUOTE} |
| SDWS191200-R50 | N/A 0.195 x 12" (3" Thread Length) Simpson Strong-Drive® SDWS™ Timber Screw (Interior Grade), T40 6-Lobe, E-coat® Electrocoating, Black, 50/pk | {QUOTE} |
| SDWS191300 | N/A 0.195 x 13" (3" Thread Length) Simpson Strong-Drive® SDWS™ Timber Screw (Interior Grade), T40 6-Lobe, E-coat® Electrocoating, Black, 250/pk | {QUOTE} |
| SDWS191300-R50 | N/A 0.195 x 13" (3" Thread Length) Simpson Strong-Drive® SDWS™ Timber Screw (Interior Grade), T40 6-Lobe, E-coat® Electrocoating, Black, 50/pk | {QUOTE} |
| SDWS191400 | N/A 0.195 x 14" (3" Thread Length) Simpson Strong-Drive® SDWS™ Timber Screw (Interior Grade), T40 6-Lobe, E-coat® Electrocoating, Black, 250/pk | {QUOTE} |
| SDWS191400-R50 | N/A 0.195 x 14" (3" Thread Length) Simpson Strong-Drive® SDWS™ Timber Screw (Interior Grade), T40 6-Lobe, E-coat® Electrocoating, Black, 50/pk | {QUOTE} |
| SDWS191500 | N/A 0.195 x 15" (3" Thread Length) Simpson Strong-Drive® SDWS™ Timber Screw (Interior Grade), T40 6-Lobe, E-coat® Electrocoating, Black, 200/pk | {QUOTE} |
| SDWS191500-R50 | N/A 0.195 x 15" (3" Thread Length) Simpson Strong-Drive® SDWS™ Timber Screw (Interior Grade), T40 6-Lobe, E-coat® Electrocoating, Black, 50/pk | {QUOTE} |
| SDWS191600 | N/A 0.195 x 16" (3" Thread Length) Simpson Strong-Drive® SDWS™ Timber Screw (Interior Grade), T40 6-Lobe, E-coat® Electrocoating, Black, 200/pk | {QUOTE} |
| SDWS191600-R50 | N/A 0.195 x 16" (3" Thread Length) Simpson Strong-Drive® SDWS™ Timber Screw (Interior Grade), T40 6-Lobe, E-coat® Electrocoating, Black, 50/pk | {QUOTE} |
| SDWS191800 | N/A 0.195 x 18" (3" Thread Length) Simpson Strong-Drive® SDWS™ Timber Screw (Interior Grade), T40 6-Lobe, E-coat® Electrocoating, Black, 200/pk | {QUOTE} |
| SDWS191800-R50 | N/A 0.195 x 18" (3" Thread Length) Simpson Strong-Drive® SDWS™ Timber Screw (Interior Grade), T40 6-Lobe, E-coat® Electrocoating, Black, 50/pk | {QUOTE} |
| SDWS221000 | N/A 0.220 x 10" (3" Thread Length) Simpson Strong-Drive® SDWS™ Timber Screw (Interior Grade), T40 6-Lobe, E-coat® Electrocoating, Black, 250/pk | {QUOTE} |
| SDWS221000-R50 | N/A 0.220 x 10" (3" Thread Length) Simpson Strong-Drive® SDWS™ Timber Screw (Interior Grade), T40 6-Lobe, E-coat® Electrocoating, Black, 50/pk | {QUOTE} |
| SDWS221000-RP1 | N/A 0.220 x 10" (3" Thread Length) Simpson Strong-Drive® SDWS™ Timber Screw (Interior Grade), T40 6-Lobe, E-coat® Electrocoating, Black, 1 pc | {QUOTE} |
| SDWS221100 | N/A 0.220 x 11" (3" Thread Length) Simpson Strong-Drive® SDWS™ Timber Screw (Interior Grade), T40 6-Lobe, E-coat® Electrocoating, Black, 250/pk | {QUOTE} |
| SDWS221100-R50 | N/A 0.220 x 11" (3" Thread Length) Simpson Strong-Drive® SDWS™ Timber Screw (Interior Grade), T40 6-Lobe, E-coat® Electrocoating, Black, 50/pk | {QUOTE} |
| SDWS221100-RP1 | N/A 0.220 x 11" (3" Thread Length) Simpson Strong-Drive® SDWS™ Timber Screw (Interior Grade), T40 6-Lobe, E-coat® Electrocoating, Black, 1 pc | {QUOTE} |
| SDWS221200 | N/A 0.220 x 12" (3" Thread Length) Simpson Strong-Drive® SDWS™ Timber Screw (Interior Grade), T40 6-Lobe, E-coat® Electrocoating, Black, 250/pk | {QUOTE} |
| SDWS221200-R50 | N/A 0.220 x 12" (3" Thread Length) Simpson Strong-Drive® SDWS™ Timber Screw (Interior Grade), T40 6-Lobe, E-coat® Electrocoating, Black, 50/pk | {QUOTE} |
| SDWS221200-RP1 | N/A 0.220 x 12" (3" Thread Length) Simpson Strong-Drive® SDWS™ Timber Screw (Interior Grade), T40 6-Lobe, E-coat® Electrocoating, Black, 1 pc | {QUOTE} |
| SDWS221500 | N/A 0.220 x 15" (3" Thread Length) Simpson Strong-Drive® SDWS™ Timber Screw (Interior Grade), T40 6-Lobe, E-coat® Electrocoating, Black, 200/pk | {QUOTE} |
