ISO 7041 GR. 9, 12 / ISO 7719 GR.5, 8, 10 Locking Nuts

Originated in the United States, ISO 7041&7719 self-tightening nuts are permanently attached to the thread with a special engineering plastic, so that the inner and outer threads are compressed during the tightening process, and the engineering plastic is squeezed to generate a strong reaction force, which greatly increases the distance between the inner and outer threads. Friction, which provides absolute resistance to vibration.

ISO 7041&ISO7719Steel Self-Tightening Locking Nuts Specifications

ISO 7041 Locking Nuts

ISO 7041 - 2012 Prevailing Torque Type Hexagon Nuts(with Non-metallic Insert),style 2,classes 9 And 12

ISO 7041 GR. 9, 12 Selflocking NutDimensions

Legend	Making
P=pitch	Carbon Steel:9，12
K=height of the nut	Thread:6H
D=the nominal diameter of the thread	Surface:BLK,ZP,HDG,etc
E=The length of the diagonal
S=The length of the flat

ISO 7719 Square Lock Nut, Steel Lock Nuts

ISO 7719 - 2012 Prevailing Torque Type All-Metal Hexagon Regular Nuts-Property Classes 5,8 And 10

ISO7719 GR.5, 8, 10 Self Tightening NutsDimensions

Legend	Making
P=pitch	Carbon Steel:5, 8 ,10
K=height of the nut	Thread:6H
D=the nominal diameter of the thread	Surface:BLK,ZP,HDG,etc
E=The length of the diagonal
S=The length of the flat

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