Simpson Strong-Tie CSA 5.0 x 40/1 Connector Screws (Sold individually)

Simpson Strong-Tie CSA Connector Screw – 5.0 x 40 mm (3405)

Engineered for Optimal Connector Performance in Timber

The CSA 5.0 x 40 mm Connector Screw by Simpson Strong-Tie is purpose-built for fastening structural connectors to timber while ensuring published load capacities are fully achieved. Its innovative design enhances contact with the connector, maximising force transfer and ensuring a secure, high-strength connection every time.

Product Features

• 6-Lobe Drive (T20): Provides excellent grip, reducing bit slippage during installation

• Conical Underside Head: Guarantees full contact within connector holes, boosting load transfer

• Type 17 Point: Minimises timber splitting and enables smooth penetration

• Superior Shear Performance: Greater cross-bearing capacity than standard screws

• Corrosion Protection: Electro-galvanised steel for indoor structural timber applications

• ETA Certified: European Technical Assessment – ETA-04/0013

Applications

Ideal for securing Simpson Strong-Tie connectors to timber substrates such as:

• Joist Hangers

• Angle Brackets

• Timber Straps

• Solid Wood, Glulam, and Composite Lumber Connections

Fastener Specifications

• Length (l): 40 mm

• Thread Length (lg): 34 mm

• Inner Shaft Diameter (d1): 3.15 mm

• Outer Thread Diameter (d): 4.85 mm

• Head Diameter (dh): 8.3 mm

• Driver Bit: T20 Torx

• Box Quantity: 250 screws

Material & Finish

• Material: Steel

• Finish: Electro-Galvanised Coating