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DCU_Composite Decking Screw
DCU_Composite Decking Screw
DCU_Decking Screw Composite-to-Timber
DCU_Decking Screw Composite-to-Timber
DCU_Decking Screw Composite-to-Timber
DCU_Decking Screw Composite-to-Timber
DCU_Decking Screw Composite-to-Timber
DCU_Decking Screw Composite-to-Timber

The DCU is designed to work in all types of composite decking without sacrificing performance. The DCU provides a cleaner, less noticeable installed appearance due to the special head design, and is available in 4 colours, matched to blend with most composite deck products.

A 316 Stainless Steel version is also available for superior corrosive protection, suitable for marine environments.

Material
  • Carbon Steel, Quik Guard® Coating
  • 316 Stainless Steel (DCU234SS316R250)
Features & Benefits
  • Double-cut point penetrates boards with ease for faster starts.
  • Tri-lobe thread design reduces damage to the composite board while driving.
  • Cap-head and inverted upper threads prevents mushrooming.
  • T-20, 6-lobe deep recess reduces cam-out, making driving easier.
  • Inverted upper threads clear excess material to ensure the screw is seated properly and consistently.
  • Quik Guard® is a Class 3 coating as per AS3566.2.
  • 316 Stainless Steel for more corrosive environments such as coastal areas.
  • Stainless Steel has the ductility to allow for movement of timber decking.
  • Available in 4 colours.
Applications
  • For composite decking (up to 25 mm thick) to timber joist
  • This screw is available loose for hand-drive
Model No. Table

Specifications - Hand-drive

Model No.

Colour

Size

Thread

Point

Material & Finish

Box Qty

Drive Size

Replacement Bit

DCU234BRR250

Brown

10G x 70mm

Tri-lobe Threads

Double-Cut

Carbon Steel

Quik Guard® Coating

250

T-20, 6-lobe

BIT20T-2-RC3

DCU234GRR250

Grey

DCU234RDR250

Red

DCU234TNR250

Tan

DCU234SS316R250

316 Stainless Steel

 

 

PLEASE NOTE: Pre-drilling and countersink may be necessary at ends, butt joints, and on applications where denser material is used. Follow the board manufacturer's recommendation where applicable. WARNINGS: Always wear PPE during installation. Corrosive environments, exposure to water, salt air, or chemicals (including some wood preservatives) may cause early failure. Click here for Corrosion Information, Important Information & General Notes.

Brochures & Catalogues
Technical Data & Docs

Technical Data Sheets

PDF icon Technical Data Sheet - DCU

Warranty

Warranty

Inspiration
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Experience the innovation design of Simpson Strong-Tie's products and how we can help you build safer, stronger structures. Please fill out your details and submit the form below. We’ll be in touch to schedule a time to talk and give you a personal demo of Simpson Strong-Tie products.

Request a Demo/Sample

Experience the innovation design of Simpson Strong-Tie's products and how we can help you build safer, stronger structures. Please fill out your details and submit the form below. We’ll be in touch to schedule a time to talk and give you a personal demo of Simpson Strong-Tie products.

Structural Connections

 

Unmatched Quality from the Truss to the Foundation

With nearly 60 years of field and R&D experience, Simpson Strong-Tie® timber connectors are manufactured to the industry's highest standards. From framing angles to straps to heavy-duty joist hangers, we offer the most diverse product line so that you have the right product for the job.

Simpson Strong-Tie® connectors offer unmatched quality with laboratory and field testing, and are backed by our uncompromising commitment to customer service. As the company that built the connector industry, you can count on Simpson Strong-Tie® to work closely with builders, engineers and building officials to deliver innovative, building code-compliant solutions to help build safer, stronger structures economically. Download the Structural Connectors Overview Flyer.

Timber Connectors

From testing to service to availability, everything we do is engineered to ensure your project's success. With every product, you know you are getting the quality, value, service and on-time delivery that we have built our reputation on for the past 60 years.

From straps and ties to joist hangers and much more, Simpson Strong-Tie® structural connectors increase the strength and safety of timber-frame structures. Each connector is unique to Simpson Strong-Tie and is designed for specific applications without the need to adapt metal plating to suit a connection. Download the Timber Construction Connectors Catalogue.