BS EN 20898-7:1995
Mechanical properties of fasteners. Torsional test and minimum torques for bolts and screws with nominal diameters 1 mm to 10 mm
- Standard No.
- BS EN 20898-7:1995
- Release Date
- 1995
- Published By
- British Standards Institution (BSI)
- Latest
- BS EN 20898-7:1995
- Replace
- 90/80108 DC-1990
- Scope
- This part of ISO 898 specifies a torsional test for the delermination 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.
BS EN 20898-7:1995 history
- 1995 BS EN 20898-7:1995 Mechanical properties of fasteners. Torsional test and minimum torques for bolts and screws with nominal diameters 1 mm to 10 mm
