Fixings

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Understanding fasteners

By Zhengwei Li 1 April 2010, Build 117, Feature article

Fasteners are an essential building material for the industry, but do you know the difference between the various types of steel and stainless steel products? Used in the wrong place, they are not going to stand the test of time.

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Lintel fixing

By Tom Edhouse 1 October 2013, Build 138

There seems to be some confusion around selecting lintels and deciding if uplift fixings are required using NZS 3604:2011 Timber-framed buildings Table 8.14, so grab your copy of NZS 3604 and work through the steps.

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Why timber eats metal

By Zhengwei Li 1 October 2017, Build 162, Feature article

BRANZ has been investigating what can make metal fasteners and fixings corrode when used in timber. Understanding this can lead to selection of compatible components and less risk of premature failures.

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Hold-down fixings

By Bruce Sedcole 1 October 2020, Build 180

BRANZ regularly receives queries about hold-down fixings to the exterior walls of timber-framed buildings. This overview sets out the fixing requirements in NZS 3604:2011 for resistance to uplift for the various framing members.

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Corrosion of fasteners

By Zhengwei Li 1 August 2009, Build 113, Feature article

Although timber treatments protect timber, they can corrode nails, screws and other hardware used in building. A BRANZ research project is investigating the effects of different treatments on some common types of metal fasteners.

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Corrosion of fasteners

By Zhengwei Li 1 December 2010, Build 121, Feature article

Results from BRANZ’s 3-year field exposure test on the performance of typical fasteners in timbers treated with waterborne copper-containing preservatives show stainless steel to be best for long-term durability.

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