To the top

New Zealand International

Product Tabs

Product Details

The DSD hardwood decking screw has been developed to install without the need to pre‑drill boards. With toughened 316 stainless steel and coarse threads, it will fasten most species of hardwood. A clean cutting head with a great look, rounds off the Ultimate Decking Screw.

Material & Finish
  • 316 Stainless Steel
Features & Benefits
  • Low torque design for fast and easy driving.
  • Broad head with nibs provides a greater clamping force and allows for a cleaner decorative finish.
  • T25 and T30 6 Lobe recess provides a positive drive system, and attractive finish.
  • A large countersunk head that holds the board firm, with nibs to help it embed cleanly and look aesthetically pleasing.
  • A knurl or nib on the shank to allow for a clearance hole as the screw is installed, reducing driving torque and improving clamping force.
  • For corrosion as well as ductility to allow hardwood timbers to move as they expand and contract. 
  • A drill point that will cut through the toughest of Hardwood timber with little chance of splitting, saving significant time for the builder.
Applications
  • For timber and hardwood decking to timber joist 
  • This screw is available loose for hand-drive and collated for Quik Drive® systems
Model No. Table

Specifications - Hand-drive

Model No.

Size

Thread

Point

Material & Finish

Box Qty

Drive Size

Replacement Bit

SSDSD50R250

12G x 50mm

Coarse Threads

Hardwood Drill Point

316 Stainless Steel

250

T-25, 6-lobe

BIT25T-2-RC3

SSDSD50R1100

1100

SSDSD65R250

12G x 65mm

250

SSDSD65R1100

1100

SSDSD1475R150

14G x 75mm

150

T-30, 6-lobe

BIT30T-2-RC3

SSDSD1475R400

400

SSDSD14100R150

14G x 100mm

150

SSDSD14100R400

400

 

Specifications - Quik Drive® Collated

Model No.

Size

Thread

Point

Material & Finish

Box Qty

Drive Size

Replacement Bit

SSDSD50SA

12G x 50mm

Coarse Threads

Hardwood Drill Point

316 Stainless Steel

1000

T-25, 6-lobe

BITTX25-RC10

SSDSD65SA

12G x 65mm

750

T-30, 6-lobe

BITTX30-RC10

 

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 - DSD

Warranty

Warranty

Masterspec
Alternative Products

Alternative Products

DHSD_Decking Screw_Hardwood-to-Hardwood - Collated & Loose

The DHSD Hardwood-to-Hardwood screw is ideal for hardwood decking applications and is specifically designed to penetrate the hardest timber with ease. The unique Drill Point virtually eliminates splitting without the need of pre-drilling.

The DHW is a premium decking fastener designed for no predrilling in hardwood decking applications. The winged design and hardwood drill point virtually eliminates splitting of timber without predrilling in the hardest timber applications.

Inspiration
Request a Demo

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.

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 Timber Connectors NZS 3604 Catalogue.

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.

Steel Frame Connectors

From fully tested and engineered connectors and clips Simpson Strong-Tie® provides comprehensive structural solutions for cold-formed steel construction. From steel-to-steel connections to full-scale lateral solutions and curtain wall connectors, we remain committed to developing new technology that helps to advance the cold-formed steel industry.

Find out how Simpson Strong-Tie timber connectors can help you build the right way every day. Download the Cold-Fromed Steel Construction Connectors Catalogue.