The Simpson Strong-Drive SDW Truss-Ply structural wood screw (0.220" shank x 3" length) is a high-strength fastener engineered specifically for joining multi-ply wood members such as plated trusses and solid-sawn lumber. Featuring an E-coat electrocoating finish, a SawTooth point for tool-free installation, and a T40 6-Lobe drive, this interior structural screw delivers reliable clamping force in multi-ply framing assemblies - all from one side of the assembly, eliminating the need to lift or flip heavy trusses and beams. The SDW meets IRC and IBC code requirements for several common framing applications, making it a code-compliant choice for professional framers and structural contractors.

Key Features

• SawTooth Point - drives into wood without predrilling, saving installation time and reducing labor on multi-ply truss and beam applications
• T40 6-Lobe Drive - provides high torque transfer with reduced cam-out risk, giving installers better control during structural fastening
• E-coat Electrocoating Finish - interior-rated corrosion-resistant coating protects the screw during handling and installation in indoor structural assemblies
• Low Profile Head (0.760" diameter) - sits flush against wood members without excessive protrusion, supporting tight, clean multi-ply connections
• 0.220" Shank Diameter - heavy-gauge shank delivers the structural shear and withdrawal capacity needed for engineered multi-ply framing
• 3" Length with 1-3/8" Thread Length - optimized geometry engages the receiving ply securely while the unthreaded shank pulls members tightly together
• One-sided installation - multi-ply trusses and beams can be fastened from one side, eliminating the need to flip or reposition heavy assemblies on the job site
• Code listed to IRC and IBC - meets requirements for several common framing applications, supporting permit-ready, inspection-ready structural connections

Why This Product

• Designed specifically for plated truss and solid-sawn lumber assembly, the SDW Truss-Ply screw solves the challenge of fastening heavy multi-ply members without repositioning - a real-world time and labor saver on structural framing jobs
• No predrilling required thanks to the SawTooth point - installers can drive directly into multi-ply lumber, reducing tool requirements and speeding up production framing workflows
• IRC and IBC code compliance means this screw is already accepted for several common structural framing applications, reducing engineering and approval burden on contractors
• The combination of a 0.220" shank, low-profile head, and optimized 3" length makes this screw purpose-built for 2-ply truss and beam connections where geometry and holding strength both matter

Specifications

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

Available Pack Options

• SDW22300-R50: 50 Pk - includes one 6-lobe, T-40 driver bit
• SDW22300MB: 250 Pk - includes one 6-lobe, T-40 driver bit
• SDW22300: 950 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 SawTooth point is designed to cut directly into wood, allowing the screw to install without predrilling. This makes installation faster and reduces the number of tools needed on the job site.

Can these screws be used to fasten trusses from only one side of the assembly?

Yes. The SDW Truss-Ply screw is specifically designed so that multi-ply trusses and beams can be fastened entirely from one side, eliminating the need to lift or flip heavy assemblies during installation.

Are these screws code compliant for structural framing applications?

Yes. The Simpson 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.

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

The SDW uses a T40 6-Lobe drive, which requires a T40 Torx-compatible driver bit. The 6-Lobe design delivers high torque transfer with reduced cam-out, making it well-suited for driving heavy-gauge structural screws into multi-ply lumber.