# The Simple Pressure Vessels (Safety) Regulations 2016, Paragraph 8: Accessories contributing to the strength of the vessel


(1) Accessories contributing to the strength of the vessel (for example bolts and nuts) must be made—
(a) of a material specified in paragraphs 2 to 6; or
(b) of other kinds of steel, aluminium or an appropriate aluminium alloy compatible with materials used for the manufacture of pressurised parts.
(2) The materials referred to in sub-paragraph (1)(b) must, at minimum working temperature, have an appropriate elongation after fracture and bending rupture energy.

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Source: https://www.legislation.gov.uk/uksi/2016/1092/schedule/1/paragraph/8 (the official version)
Page: https://openlegislation.uk/simple-pressure-vessels-safety-regulations-2016/schedule-1/paragraph-8
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.