WS35-EXTR12 1/4 in. x 3-1/2 in. Hex Head Structural Wood Screws

The WS35-EXTR12 1/4 in. x 3-1/2 in. Hex Head Structural Wood Screw is engineered to deliver exceptional holding power and reliable structural performance in demanding wood construction applications. Designed for professional contractors, builders, and serious DIY users, these high-strength structural screws provide a secure alternative to traditional lag screws while offering faster installation and reduced labor requirements.

Featuring a durable epoxy-coated finish and heavy-duty hex head design, the WS35-EXTR12 is ideal for both interior and exterior projects where strength, corrosion resistance, and long-term durability are critical. The self-drilling design helps reduce installation time while minimizing wood splitting, making these screws well suited for framing, deck construction, structural connections, and general wood-to-wood fastening applications.

Engineered to meet code-compliant structural fastening requirements, these screws are commonly used in residential, commercial, and light industrial construction projects. Their versatile design allows use in both wood-to-wood and metal-to-wood connections, providing contractors with a dependable fastening solution for a wide range of applications.

Key Features

• Structural-grade wood screw designed for high-load applications

• 1/4 in. diameter provides superior holding strength and shear performance

• 3-1/2 in. length ideal for structural wood connections

• Hex head design allows for positive drive engagement and high installation torque

• Durable epoxy-coated finish for interior and exterior use

• Self-drilling design helps reduce installation time

• Helps minimize wood splitting during installation

• Suitable for wood-to-wood fastening applications

• Compatible with metal-to-wood connection applications

• Code-compliant structural fastener design

• Engineered for framing and structural construction projects

• Provides an alternative to traditional lag screw installations

• Ideal for professional contractors and builders

• Designed for long-term durability and dependable performance

Specifications

• Model Number: WS35-EXTR12

• Product Type: Structural Wood Screw

• Head Style: Hex Head

• Diameter: 1/4 in.

• Length: 3-1/2 in.

• Application: Interior and Exterior Use

• Drive Type: Hex Drive

• Fastener Material: Structural Steel

• Installation Method: Self-Drilling

• Fastening Type: Wood-to-Wood and Metal-to-Wood Connections

• Compliance: ICC-ES ESR-2761 Listed

• Code Compliance: IBC and IRC Compliant

Applications

The WS35-EXTR12 structural wood screw is designed for a variety of construction and structural fastening projects, including:

• Wood framing assemblies

• Deck construction and deck framing

• Ledger board attachment

• Beam-to-post connections

• Structural wood repairs

• Outdoor construction projects

• Pergolas and pavilions

• Fence and gate construction

• Timber and heavy wood construction

• Wood connector installations

• Metal connector to wood fastening

• General structural carpentry applications

• Residential construction projects

• Commercial framing projects

• Remodeling and renovation work