The Simpson Strong-Drive SDW EWP-Ply 0.220 x 6-3/4" Structural Wood Screw with E-coat Electrocoating is a high-strength fastener engineered specifically for connecting multi-ply wood members - including engineered wood products and solid sawn lumber. Designed by Simpson for demanding structural framing applications, this screw installs without predrilling, saving time and labor on engineered lumber assemblies. The optimized 6-3/4" length is ideal for fastening 1-3/4" engineered lumber such as structural composite lumber (SCL), making it a go-to choice for contractors working with laminated veneer lumber and other SCL members. Code listed under IAPMO-UES ER-192 and meeting 2015 and 2018 IRC and IBC requirements, this fastener delivers both performance and compliance for structural framing and engineered-wood applications.

Key Features

• No-predrill SawTooth Point - drives directly into engineered wood and solid sawn lumber without requiring a pilot hole, speeding up installation and reducing steps on the job site
• E-coat Electrocoating finish - provides a durable, uniform protective layer over the fastener surface, extending service life in interior structural applications
• Low Profile Head (0.760" diameter) - sits flush after installation, reducing interference when stacking or sliding assembled girders and allowing finishes or structural connectors to install cleanly over the top
• T40 6-Lobe Drive Type - delivers high torque transfer with reduced cam-out, giving installers better control and a more secure drive even in tight framing conditions
• 0.220" shank diameter with 1-1/2" thread length - heavy shank provides structural-grade holding strength while the thread geometry is optimized for grip in engineered lumber members
• Optimized 6-3/4" length for 1-3/4" engineered lumber - purpose-built sizing eliminates guesswork when specifying fasteners for structural composite lumber (SCL) and similar engineered wood products
• Code listed under IAPMO-UES ER-192 - meets 2015 and 2018 IRC and IBC requirements, supporting permit-ready installations for common wood framing and engineered-wood applications

Why This Product

• Designed from the ground up for multi-ply engineered wood connections - the SDW EWP-Ply addresses the specific challenge of fastening structural composite lumber (SCL) and multi-ply assemblies where standard screws may not meet structural or code requirements
• Eliminates predrilling entirely - the SawTooth Point self-penetrates engineered lumber and solid sawn lumber, cutting installation time significantly on high-volume framing projects
• Low-profile flush head simplifies downstream work - assembled girders handle more easily, and the near-flush surface means structural connectors and finish materials install without obstruction or shimming
• Backed by code compliance under IAPMO-UES ER-192 for 2015 and 2018 IRC and IBC - specifiers and inspectors have a recognized listing to reference, reducing approval friction on permitted structural work

Specifications

• Brand: Simpson Strong-Tie
• Shank Diameter (in.): 0.220
• Length (in.): 6 3/4
• Head Diameter (in.): 0.760
• Thread Length (in.): 1 1/2
• Head Type: Low Profile Head
• Drive Type: T40 6-Lobe
• Point Type: SawTooth Point
• Coating: E-coat Electrocoating
• Finish: E-coat Electrocoating
• Color: None
• Country of Origin: Taiwan

Available Pack Options

• SDW22634-R50: 50 Pk - includes one 6-lobe, T40 driver bit
• SDW22634MB: 200 Pk - includes one 6-lobe, T40 driver bit
• SDW22634: 500 Pk - includes two 6-lobe, T40 driver bits

Frequently Asked Questions

Does this screw require predrilling before installation?

No. The SawTooth Point is specifically designed to self-penetrate engineered wood products and solid sawn lumber without any predrilling, making installation faster and more straightforward on structural framing projects.

What type of wood members is this screw designed for?

The SDW EWP-Ply screw is designed for fastening multi-ply wood members, including engineered wood products such as structural composite lumber (SCL) and solid sawn lumber. The 6-3/4" length is optimized for use with 1-3/4" engineered lumber members.

What code listings apply to this screw?

This screw is code listed under IAPMO-UES ER-192 and meets the requirements of the 2015 and 2018 IRC and IBC for several common wood framing and engineered-wood applications, supporting its use on permitted structural installations.

What drive tool is required to install this screw?

This screw uses a T40 6-Lobe drive, which requires a compatible T40 6-Lobe bit. The 6-lobe interface provides high torque transfer and minimizes cam-out during installation, making it well suited for structural fastening work.