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Product Details
TA9Z-R
TA9Z-R
TA9Z-R Illustration
TA9Z-R Illustration
TA9SS
TA9SS
TA9SS Illustration
TA9SS Illustration

The TA Staircase Angle is a heavy duty angle bracket for connecting stair treads and stringers. It makes easier to build structurally sound stairs. Installing stair treads with TA angles instead of notching the stringers saves time and results in a full cross‑section stringer.

Material

Carbon Steel 2mm thick

Finish
  • ZMAX® Galvanised: TA9Z-R
  • 316 Stainless Steel: TA9SS
Features & Benefits
  • Quick and simple installation
  • Eliminates costly conventional notching
  • Available in 316 Stainless Steel for applications where maximum corrosion resistance is required
Installation
  • Use all specified fasteners
  • Installs easily with Strong‑Drive® SDS Heavy‑Duty Connector screws; no pre‑drilling required
Model No. Table

Model No.

Fasteners
(No. – Dia. x Length, mm)

Country

Design Download Capacity (kN)

Stringer

Tread

TA9Z-R

3 – SDS6.4 x 38

2 – SDS6.4 x 38

AU

k1 = 0.69

3.6

NZ

k1 = 0.80

4.2

TA9SS5

3 – SDS6.4 x 38

2 – SDS6.4 x 38

AU

k1 = 0.69

3.6

NZ

k1 = 0.80

4.2

  1. Design Capacity is the lesser of (1) the Characteristic Capacity multiplied by the Australian Capacity Factor, or the NZ Strength Reduction Factor (φ), and applicable the k modification factors following AS 1720.1 and NZS 3603 and (2) the Serviceability Capacity which is the load at 3.2mm joint slip. Design Capacity is the minimum of test data and structural joint calculation.
  2. For Australia, the Capacity Factor (φ) is 0.85 for nails and screws for structural joints in a Category 1 application. Reduce tabulated values where other Category applications govern. For NZ, the Strength Reduction Factor (φ) is 0.80 for nails in lateral load and 0.70 for other fasteners.
  3. Duration of Load Factor (k1) is as shown. Reduce Duration of Load Factor where applicable. Capacities may not be increased.
  4. Timber species for joint design is seasoned Radiata Pine, which is Australia Joint Group JD4 per AS 1720.1 Table H2.4 and New Zealand Joint Group J5 per NZS 3603 Table 4.1.
  5. Simpson Strong-Tie stainless-steel connectors require stainless-steel fasteners.
Brochures & Catalogues
Technical Data & Docs

Technical Data Sheets

PDF icon Technical Data Sheet - TA

Warranty

Warranty

CAD Library
Inspiration
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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 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.