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DIN EN 1661
Hexagon nuts with flange
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DIN EN 1663
Prevailing torque type hexagon nuts with flange(with non-metallic insert)
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DIN EN 1664
Prevailing torque type all-metal hexagon nuts with flange
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DIN EN 1666
Prevailing torque type hexagon nuts with flange(with non-metallic insert),with metric fine pitch thread
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DIN EN 1667
Prevailing torque type all-metal hexagon nuts with flange,with metric fine pitch thread
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DIN EN 14218
Hexagon nuts with flange. Fine pitch thread
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DIN EN 14399-3
High-strength structural bolting assemblies. For preloading
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DIN EN 14399-4
High-strength structural bolting assemblies. For preloading
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DIN EN 14399-5
High-strength structural bolting assemblies. For preloading
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DIN EN 14399-6
High-strength structural bolting assemblies. For preloading
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