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SDS Strong‑Drive Heavy Duty Connect Screw
SDS Strong‑Drive Heavy Duty Connect Screw
SDS Strong‑Drive Heavy Duty Connect Screw
SDS Strong‑Drive Heavy Duty Connect Screw
SDS Illustration
SDS Illustration
SDS Package
SDS Package

The Strong‑Drive® SDS Heavy Duty Connector Screw is a 6.4mm diameter structural wood screw ideal for various connector installations as well as timber-to-timber applications. It installs with no predrilling and has been extensively tested in various applications.

The SDS Strong‑Drive® screws are also available in 316 Stainless Steel. The new stainless-steel SDS screws are appropriate for higher-exposure environments where maximum corrosion-resistance is required.

The SDS screws are suitable for use with the following connectors:

  • DTT2Z* and DTT2SS* — (Deck) Tension Ties & Holdown
  • HDU8-SDS2.5* — Holdown
  • CJT* — Concealed Joist Tie
  • TA — Staircase Angles

*Screws are included with these connectors.

Material & Finish
  • Carbon Steel with Double-Barrier Coating
  • 316 Stainless Steel
Features & Benefits
  • Designed for installation in certain Simpson Strong‑Tie® structural connectors as well as timber-to-timber applications
  • 3/8" Hex Head reduces cam-out for easier installation
  • Serrated Threads and Sharp Point make driving easier
  • Optimised heat treating for ductility and strength
  • Type-17 Point enable easy driving with no predrilling and minimal splitting
  • Double-Barrier Coating provides corrosion resistance equivalent to hot-dip galvanisation
  • Stainless Steel SDS provides maximum corrosion protection
Applications
  • Heavy Duty Simpson Strong‑Tie® Connectors
Model No. Table

Model No.

Size

Thread

Point

Material & Finish

Box Qty

Drive Size

These coated fasteners possess a level of corrosion resistance that makes them suitable for use in some exterior and corrosive environments and with some preservative-treated timber.
For applications in higher-exposure applications, consider Type-300 series stainless-steel fasteners for superior corrosion resistance. Bit(s) included with every box of screws.
Pre-drilling and countersink may be necessary at ends, butt joints, and on applications where denser material is used. Follow board manufacturers recommendations where applicable.

SDS25112-R25

6.4mm x 38mm

Serrated Threads

Type-17

Carbon Steel
Double-Barrier Coating

25

3/8” Hex Head

SDS25212-R25

6.4mm x 64mm

SDS25300-R25

6.4mm x 76mm

SDS25112SS-R25

6.4mm x 38mm

316 Stainless Steel

SDS25212SS-R25

6.4mm x 64mm

SDS25300SS-R25

6.4mm x 76mm

Brochures & Catalogues
Technical Data & Docs

Technical Data Sheets

PDF icon Technical Data Sheet - SDS

Warranty

Warranty

Masterspec
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.