Simpson Strong-Tie Strong-Drive SDW TRUSS-PLY Screw

The Strong-Drive SDW Truss-Ply screw is a high-strength structural wood screw specifically designed for fastening multi-ply wood members, such as joining plated trusses and solid-sawn lumber. The SDW installs easily with no predrilling and is available in optimized lengths for fastening 2-, 3- and 4-ply trusses. With the SDW Truss-Ply screw, multi-ply trusses and components can be fastened from one side without requiring the lifting and flipping of heavy assemblies. It is code listed in IAPMO UES ER-192 and meets 2018 and 2021 IRC® and IBC® code requirements for most common wood framing applications with wood and engineered wood.

• Large washer head with nibs provides maximum bearing area; stamped with the Simpson Strong-Tie “≠” sign and fastener length for easy identification after installation
• 6-lobe, T40 drive provides positive engagement that makes the screw easy to drive and improves bit life (replacement bit - BIT40T-134-R2)
• Low-profile head results in less interference after installation; makes stacking and sliding members easier and allows installation of hardware and finishes to be virtually flush
• Higher shear values than competitive products enable wider spacing, saving time and money
• Bold thread design provides superior holding power and cinches fastened members together for consistent installation
• SawTooth® point ensures fast starts, reduces installation torque and eliminates the need for predrilling in most applications
• Retail and mini-bulk packs include one 6-lobe, T40 driver bit; bulk packs include two driver bits

Specifications (all models)

• Fastener Type: Hand-Drive Screw
• Shank Diameter (in.): 0.220
• Head Type: Low Profile Head
• Head Diameter (in.): 0.760
• Drive Type: T40 6-Lobe
• Point Type: SawTooth Point
• Thread Length (in.): 1 3/8
• Finish: E-coat Electrocoating
• Coating: E-Coat Electrocoating
• Application: Fastening Wood-to-Wood / Truss-Ply Fastening

Available options (see each model for exact values)

• Length (in.): 3, 4 3/8, 4 5/8, 6, 6 3/8
• Dimensions: 0.22 x 3, 0.22 x 4 3/8, 0.22 x 4 5/8, 0.22 x 6, 0.22 x 6 3/8
• Packaging Type: Bulk, Box, Bucket