BS EN ISO 16047:2005+A1:2012
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Fasteners. Torque/clamp force testing
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10-23-2020
This International Standard specifies the conditions for carrying out torque/clamp force tests on threaded fasteners and related parts.
It is applicable, basically, to bolts, screws, studs and nuts made of carbon steel and alloy steel, whose mechanical properties are specified in ISO 898-1 ISO 898-2 having ISO metric threads with thread sizes M3 to M39. It is also applicable to the combination of other externally and internally threaded fasteners with a triangular ISO thread according to ISO 68-1.
It is not applicable to set screws and similar threaded fasteners that are not under tensile stresses, nor to screws which form their own mating thread Text deleted.
Unless otherwise agreed, the tests are carried out at room temperature. However, tests carried out under standard conditions are made at a temperature of 10 °C to 35 °C.
This method allows determination of the tightening characteristics of threaded fasteners and related parts.
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