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Identifying Property Class 8.8 bolts, nuts and washers

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It is vitally important that all components in these bolt sets (bolt, nut and washer) carry the special identification given in Clause 1.5 of AS/NZS 1252. NZS 3404 recognises that property classes of bolts other than Property Class 8.8 may be used provided they are compatible with the relevant material supply standards listed. These bolts are not covered by AS/NZS 1252. Some of these can be used for fully tensioned applications. Advice on their identification and proper use can be obtained from HERA.

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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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