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Norm

ÖNORM EN 20898-7

Issue date: 1995 06 01

Mechanical properties of fasteners - Part 7: Torsional test and minimum torques for bolts and screws with nominal diameters 1 mm to 10 mm (ISO 898-7:1992)

This part of ISO 898 specifies a torsional test for the determination of the breaking torque of bolts and screws with nominal diameters 1 mm to 10 rnm with property cl...
Valid
Publisher:
Austrian Standards International
Format:
Digital | 8 Pages
Language:
German | English | Download GER/ENG
Optionally co-design standards:
This part of ISO 898 specifies a torsional test for the determination of the breaking torque of bolts and screws with nominal diameters 1 mm to 10 rnm with property classes 8.8 to 12.9 in accordance with ISO 898-1. The test applies to bolts and screws with thread tess lhan M3 for whicli no breaking and proof loads are indicated in JSO 898-1, as well as to short bolts and screws with nominal diameters 3 mrn to 10 mm which cannot be subjected to a tensile test. The rninimum breaking torques are not valid for hexagon socket set screws.
ÖNORM EN 20898-7
1995 06 01
Mechanical properties of fasteners - Part 7: Torsional test and minimum torques for bolts and screws...
Norm
Norm
ISO 898-1:1988
Issue date : 1988 02 18
Mechanical properties of fasteners — Part 1: Bolts, screws and studs
Norm
ISO 898-7:1992
Issue date : 1992 11 12
Mechanical properties of fasteners — Part 7: Torsional test and minimum torques for bolts and screws with nominal diameters 1 mm to 10 mm