IFC (IFC4X3_ADD1) development Pset_MechanicalFastenerBolt Semantic definition

Properties related to bolt-type fasteners. The properties of a whole set with bolt, washers and nut may be provided. Note, it is usually not necessary to transmit these properties in case of standardized bolts. Instead, the standard is referred to. Applicable entities Properties

Name Property Type Data Type Description
ThreadDiameter IfcPropertySingleValue IfcPositiveLengthMeasure

Nominal diameter of the thread, if different from the bolt's overall nominal diameter

ThreadLength IfcPropertySingleValue IfcPositiveLengthMeasure

Nominal length of the thread

NutsCount IfcPropertySingleValue IfcCountMeasure

Count of nuts to be mounted on one bolt

WashersCount IfcPropertySingleValue IfcCountMeasure

Count of washers to be mounted on one bolt

HeadShape IfcPropertySingleValue IfcLabel

Shape of the bolt's head, e.g. 'Hexagon', 'Countersunk', 'Cheese'

KeyShape IfcPropertySingleValue IfcLabel

If applicable, shape of the head's slot, e.g. 'Slot', 'Allen'

NutShape IfcPropertySingleValue IfcLabel

Shape of the nut, e.g. 'Hexagon', 'Cap', 'Castle', 'Wing'

WasherShape IfcPropertySingleValue IfcLabel

Shape of the washers, e.g. 'Standard', 'Square'


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