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SDCF Fully Threaded Structural Timber Screw

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Product Details

The SDCF Timber screw is a structural fastener designed for cross-laminated timber (CLT), mass timber construction and general interior applications. The large flat head with underhead nibs enables clean countersinking and a flush finish, while the SawTooth® point ensures fast starts, reducing installation torque and eliminating the need for predrilling in most applications.

Material

Carbon Stee

Finish

Black E-coat® Electrocoating

Features & Benefits
  • Flat head with nibs helps countersink the screw for a flush finish.
  • Heavy-duty, fully threaded shank provides strength, with superb withdrawal resistance.
  • SawTooth point for fast start and easy driving.
  • Black E-coat® finish provides a construction-durable nonmetallic coating for corrosion resistance in interior dry-service applications.
  • The E-coat® finish enhances aesthetics and, along with the optimized hardness profile, helps mitigate risk of brittle fracture for reliable, long-term performance.
  • Compliant with CSA O86:24 hydrogen embrittlement requirements.
  • Deep 6-lobe recess for a secure drive.
     
Applications

Timber-to-timber connections, reinforcements, glulam, CLT, timber-based panels

Model No. Table

Model No.

Size (OD x Length) (mm)

Head Dia. (mm)

Thread Length (mm)

Point

Material & Finish

Box Qty

Drive Size

Replacement Bit

SDCF8X120-R50

8 x 120

15

110

SawTooth®
Type-17 Point

Carbon Steel
Black E-coat® Electrocoating

50

T40, 6-lobe

BIT40T-134-R2

SDCF8X140-R50

8 x 140

130

SDCF8X160-R50

8 x 160

150

SDCF8X180-R50

8 x 180

170

SDCF8X200-R50

8 x 200

190

SDCF8X220-R50

8 x 220

210

SDCF8X240-R50

8 x 240

230

SDCF8X260-R50

8 x 260

250

SDCF8X300-R50

8 x 300

290

SDCF8X350-R50

8 x 350

340

SDCF10X100-R30

10 x 100

18.5

88

SawTooth®
Type-17 Point

Carbon Steel
Black E-coat® Electrocoating

30

T50, 6-lobe

BIT50T-2-R1

SDCF10X160-R30

10 x 160

148

SDCF10X200-R30

10 x 200

188

SDCF10X240-R30

10 x 240

228

SDCF10X280-R30

10 x 280

268

SDCF10X360-R30

10 x 360

348

SDCF10X400-R30

10 x 400

388

SDCF10X450-R30

10 x 450

426

SDCF12X200-R25

12 x 200

22.2

180

SawTooth®
Type-17 Point

Carbon Steel
Black E-coat® Electrocoating

25

T50, 6-lobe

BIT50T-2-R1

SDCF12X240-R25

12 x 240

220

SDCF12X280-R25

12 x 280

260

SDCF12X350-R25

12 x 350

330

SDCF12X450-R25

12 x 450

425

SDCF12X600

12 x 600

575

 

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

Brochures and Catalogues

PDF icon Flyer - SDCF Fully Threaded Structural Timber Screw
Technical Data & Docs

Report Links

ESR-3046
ESR-3046-CA

Warranty

Warranty

Masterspec
Inspiration

Inspiration

SDCF_Application_01.jpg

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Experience the innovative 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.

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Request a Demo/Sample

Experience the innovative 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.

* Start typing address and select from the autocomplete.

Privacy policy

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 Engineered Structural Connectoions flyer.

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.