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RR47
RR47
RR47 Illustration
RR47 Illustration

The RR47 Ridge Rafter Connector provides a solid connection between rafter and ridge beam. The RR47 provides alignment control and correct nailing locations.

Please check the Corrosion Information to see if it is suitable for your application.

Material

Carbon Steel 1.2mm thick

Finish

Z275 Galvanised 

Features & Benefits
  • Interlocking top‑flange design eliminates interference and helps ensure rafter alignment
  • For face‑mount applications, the top flange can be bent up straight and nailed off
  • Diamond holes allow for attachment to rafter prior to attachment to ridge
Installation
  • Use all specified fasteners 
  • The RR47 may be used with any rafter slope up to 30°
Model No. Table

Model No.

Dimensions

Fasteners
(No. – Length x Dia., mm)

Country

Design Capacity (kN)

W

D

Header

Rafter

Uplift

Download

Floor

Roof

RR47

47

112

4 – 38 x 3.75

4 – 38 x 3.75

AU

k1 = 1.14

k1 = 0.69

k1 = 0.77

0.34

2.16

2.16

NZ

k1 = 1.0

k1 = 0.80

k1 = 0.80

0.32

2.03

2.03

  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 loading.
  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.
 
Brochures & Catalogues

Brochures and Catalogues

PDF icon Flyer - RR47 Ridge Rafter Connector
Technical Data & Docs

Technical Data Sheets

PDF icon Technical Data Sheet - RR47

Warranty

Warranty

CAD Library
Alternative Products

Alternative Products

LSSR

The innovative design of the LSSR Slopeable & Skewable Rafter Hanger allows it to adjust for skew up to 45° and features an innovative hinged swivel seat to adjust for up to a 45° slope on site, eliminating the need for pre‑skewed/sloped or cu

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Experience the innovation of Simpson Strong-Tie 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 provide you a demo and/or send you samples*.

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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.

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