ISO 898-7
Mechanical Properties of Fasteners - Part 7: Torsional Test and Minimum Torques for Bolts and Screws with Nominal Diameters 1 mm to 10 mm
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| Organization: | ISO |
| Publication Date: | 1 January 1992 |
| Status: | active |
| Page Count: | 7 |
| ICS Code (Bolts, screws, studs): | 21.060.10 |
scope:
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 mm with property classes 8.8 to 12.9 in accordance with ISO 898-1. The test applies to bolts and screws with thread less than M3 for which no breaking and proof loads are indicated In ISO 898-1, as well as to short bolts and screws with nominal diameters 3 mm to 10 mm which cannot be subjected to a tensile test.
The minimum breaking torques are not valid for hexagon socket set screws.
Document History
ISO 898-7
January 1, 1992
Mechanical Properties of Fasteners - Part 7: Torsional Test and Minimum Torques for Bolts and Screws with Nominal Diameters 1 mm to 10 mm
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 mm with property classes 8.8 to 12.9 in accordance...