The Simpson Strong-Drive SDW Truss-Ply structural wood screw is a high-strength fastener engineered specifically for joining multi-ply wood members - including plated trusses and solid sawn lumber - in demanding structural framing applications. At 0.220" shank diameter and 6" length, this heavy-duty screw delivers the penetration depth needed for secure connections in 2-, 3-, and 4-ply truss assemblies. Protected by an E-coat electrocoating finish, it is designed for interior structural use where reliable, code-compliant fastening is essential. Simpson's SDW Truss-Ply screw meets IRC and IBC code requirements for several common framing applications, giving builders and engineers confidence in every installation.

Key Features

• No predrilling required - the SawTooth point drives directly into multi-ply lumber without pilot holes, saving significant labor time on the job site
• 0.220" shank diameter and 6" length - provides the structural strength and penetration depth required for fastening 2-, 3-, and 4-ply truss assemblies
• Low profile head (0.760" head diameter) - sits flush and clean against lumber surfaces, reducing interference with adjoining members and maintaining a tight assembly
• T40 6-Lobe drive type - delivers high torque transfer with reduced cam-out, keeping the bit engaged through dense multi-ply wood connections
• E-coat electrocoating finish - provides a durable, uniform protective coating suited for interior structural wood applications
• 1-3/8" thread length - optimized thread engagement anchors firmly into the receiving member for strong, consistent pull-through resistance
• Single-side installation - multi-ply trusses and beams can be fastened from one side without lifting or flipping heavy assemblies, improving jobsite safety and efficiency
• Code listed - meets IRC and IBC requirements - supports permit-ready framing work across a range of common structural applications

Why This Product

• Designed specifically for multi-ply truss and beam connections - this is not a general-purpose wood screw, it is an application-optimized structural fastener built to handle the demands of joining plated trusses and laminated lumber assemblies
• One-side fastening eliminates the need to flip or reposition heavy multi-ply assemblies during installation, reducing crew fatigue and improving workflow on large framing projects
• The SawTooth point combined with the T40 6-Lobe drive means no predrilling and reduced cam-out risk - keeping installation fast and consistent even in dense structural lumber
• IRC and IBC code listing means the SDW Truss-Ply screw satisfies inspector requirements for several common structural framing applications, removing uncertainty from the permitting process

Specifications

• Brand: Simpson Strong-Tie
• Shank Diameter (in.): 0.220
• Length (in.): 6
• Head Diameter (in.): 0.760
• Head Type: Low Profile Head
• Drive Type: T40 6-Lobe
• Thread Length (in.): 1 3/8
• Point Type: SawTooth Point
• Coating: E-coat Electrocoating
• Finish: E-coat Electrocoating
• Country of Origin: Taiwan

Available Pack Options

• SDW22600-R50: 50 Pk - includes one 6-lobe, T-40 driver bit
• SDW22600MB: 200 Pk - includes one 6-lobe, T-40 driver bit
• SDW22600: 500 Pk - includes two 6-lobe, T-40 driver bits

Frequently Asked Questions

Does the Simpson SDW Truss-Ply screw require predrilling before installation?

No. The SDW Truss-Ply screw features a SawTooth point specifically designed to drive directly into multi-ply wood members without any predrilling. This keeps installation fast and reduces the number of steps required when fastening plated trusses or solid sawn lumber assemblies.

Can this screw be installed from one side of the assembly?

Yes. The SDW Truss-Ply screw is designed so that multi-ply trusses and beams can be fastened entirely from one side. This eliminates the need to lift and flip heavy assemblies during the fastening process, which improves both jobsite efficiency and crew safety.

What drive tool is needed for the Simpson SDW Truss-Ply screw?

This screw uses a T40 6-Lobe drive, which requires a T40 Torx-compatible bit. The 6-Lobe profile delivers high torque transfer and resists cam-out, making it well suited for driving through dense, multi-ply structural lumber.

Is the SDW Truss-Ply screw code compliant for structural framing applications?

Yes. The Simpson Strong-Drive SDW Truss-Ply screw is code listed and meets IRC (International Residential Code) and IBC (International Building Code) requirements for several common structural framing applications, making it suitable for permitted residential and commercial construction work.