DS DS/EN 20898-7
DS DSEN 20898-7 1995-MAR-29 Mechancal propertes of fasteners - Part 7 Torsonal test and mnmum torques for bolts and screws wth nomnal dameters 1 mm to 10 mm
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This part of ISO 898 specifies a torsional test for the determination of 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.