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Self-Locking Torque Inspection Specification for NYLOK?

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Basic Specifications

◎ External and internal diameters of Metric screw threads must meet the requirement of ISO 965-2:1998.

 External and internal diameters of British Standard screw threads must meet the requirement of ASME B1.1:2003.

 External threads of counterparts must meet the tolerance of 6g ring gauge. Internal threads of counterparts must meet the tolerance of 6H bolt gauge. 

 For internal threaded counterpart (i.e. nuts), chamfer processing is necessary and it should not have any sharp burr.

Coating length should be at least 4 pitches long, and the coating design should be based on the actual locking position on the counterpart as well as common application. 

 The design of self-locking torque is based on IFI specifications. Please consult us in advance for any special requirement.





Self-Locking Torque Inspection Specification

IFI stands for International Industrial Fasteners Institute, and IFI-524/ IFI-124 are the only globally recognized self-locking torque inspection specification for non-metallic self-locking material. IFI specifications are also the fundamental principles of self-locking specifications for other industries.










 

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