Strong-Drive® SDWC TRUSS Screw
The Strong-Drive® SDWC structural wood screw provides a stud-to-bottom plate or stud-to-top plate connection as well as fastening trusses and rafters to top plates. The full-threaded shank engages the entire length of the fastener providing a secure connection. The SDWC is tested in accordance with ICC-ES AC233 (screw) and AC13 (wall assembly and roof-towall assembly) for uplift and lateral loads between wall plates and vertical wall framing and between the top plate and the roof rafters or trusses.
- Fully-threaded shank engages the entire length of the fastener, providing a secure connection between the roof and wall framing members
- Cap-style head countersinks fully into the double top plate to avoid interference with drywall or finish trades
- Wide tolerance on installation angle makes it easy to install the SDWC correctly
- Can be installed from inside the structure, eliminating exterior work on the upper stories and enhancing job safety
- Fastening can be performed before or after exterior sheathing is applied for added flexibility
- Metal installation guide tool (included) to help ensure proper installation
- Matched-tolerance driver bit (included) engages fastener head securely to allow one-handed driving (replacement bit part no. BIT30T-R1)
- Orange color for easy inspection
- Type-17 point for faster starts and easier driving
- SDWC15450 is recognized for use in chemically treated wood as described in the evaluation report
Truss/Rafter-to-Plate and Stud-to-Plate Connections
See General Notes.
- Load Tables, Technical Data and Installation Instructions for the Strong-Drive® SDWC TRUSS Screw
- Installation Detail Drawings
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Product Information Table
|Model No.||Length (in.)||Drive Type||Head Type||Thread Length||Shank Diameter (in.)||Point Type||Coating/Material||Color||Packaging Quantity||UPC|
|SDWC15450B-KT||4 1/2||T-30 6-Lobe||Cap Head||4 1/4||0.152||Type-17 Point||E-Coat™ Electrocoating||Black||500||707392902102|
|SDWC15450-KT||4 1/2||T-30 6-Lobe||Cap Head||4 1/4||0.152||Type-17 Point||E-Coat™ Electrocoating||Black||50||746056235507|
|SDWC15600B-KT||6||T-30 6-Lobe||Cap Head||5 3/4||0.152||Type-17 Point||Clear-Zinc Coating||Orange||500||707392888307|
|SDWC15600-KT||6||T-30 6-Lobe||Cap Head||5 3/4||0.152||Type-17 Point||Clear-Zinc Coating||Orange||50||746056548027|
Strong-Drive® SDWC TRUSS Screw Allowable Roof-to-Wall Connection Loads – DFL, SP, SPF, HF
- Loads have been increased for wind and earthquake (CD = 1.6); no further increases allowed. Reduce when other loads govern.
- Allowable loads are for an SDWC installed per the 'Recommended' or 'Optional' installation instructions. The SDWC is to be installed through a double 2x top plate into a minimum 2x4 truss or rafter.
- SDWC screws may be used in 2- or 3-ply rafters or trusses. The allowable uplift load for each screw shall be multiplied by 0.90, but may be limited by the capacity of the plate or the connection between the top plate to the framing below. SDWC screws in multi-ply assemblies must be spaced a minimum of 1 1/2" o.c.
- Screws are shown installed on the interior side of the wall. Installations on the exterior side of the wall are acceptable when the rafter or truss overhangs the top plates a minimum of 3 1/2".
- For Uplift Continuous Load Path, top plate to stud connectors such as the H2.5A, TSP or MTS12 must be located on the same side of the wall as the screw.
- When the screw is loaded simultaneously in more than one direction, the allowable load must be evaluated using the following unity equation: (Design Uplift ÷ Allowable Uplift) + (Design F1 ÷ Allowable F1) + (Design F2 ÷ Allowable F2) ≤ 1.0.
- Table loads do not apply to trusses with end-grain bearing.
- Top plate, stud and top plate splice fastened per applicable Building Code.
Strong-Drive® SDWC Allowable Stud-to-Plate Connection Loads – DFL, SP, SPF, HF
- Loads have been increased 60% for wind or earthquake loading (CD = 1.6) with no further increases allowed; reduce where other loads govern.
- Allowable loads are for SDWC installed per the installation instructions.
- The SDWC15450 is to be installed through the face of 2x stud into a single 2x bottom plate over a concrete/masonry foundation.
- The SDWC15600 is to be installed through the face of 2x stud into a single 2x bottom plate over a wood floor system.
- The SDWC15600 is to be installed through the face of 2x stud into a double 2x top or bottom plate.
- Double-top plates shall be fastened together as required by applicable Code.
- When the screw is loaded simultaneously in more than one direction, the allowable load must be evaluated using the following unity equation:
(Design Uplift ÷ Allowable Uplift) + (Design F2 ÷ Allowable F2) ≤ 1.0
High Wind-Resistant Construction D134: Load Path Installation Considerations: Building Floor-to-Floor StrapsDWG DXF