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International concern

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An Australian Regulation Bulletin article highlighted international concern about bolt failures due to defective and counterfeit bolts. The 2006 article discussed a specific structural failure in Australia associated with Property Class 8.8 structural bolts, where 20 and 24 mm diameter bolts did not meet relevant tensile strength requirements. In 1999 the US government enacted the Fastener Quality Act after defective and counterfeit fasteners caused the death of nearly 400 US citizens over 15 years.

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This information is published by the Ministry of Business, Innovation and Employment’s Chief Executive. It is a general guide only and, if used, does not relieve any person of the obligation to consider any matter to which the information relates according to the circumstances of the particular case. Expert advice may be required in specific circumstances. Where this information relates to assisting people:

with compliance with the Building Act, it is published under section 175 of the Building Act
with a Weathertight Services claim, it is published under section 12 of the Weathertight Homes Resolution Services Act 2006.

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