Earnest Technical Library
Technical Library Online Catalog

ALL METAL LOCK NUT DESIGNS

Automation Style also called:  stover style, crowned top, coned top


Earnest stocks the automation style in sizes 1/4 to 1” for its standard line


Automation Style

Collar Style

Earnest stocks the collar style in sizes 1 1/8 and larger.



Collar Style

Crimp Style

Earnest stocks the collar style in sizes 1 1/8 and larger.


Crimp styles

Crimp styles: The “locking” feature is created by crimping the top of the nut to create an interference in the thread (prevailing torque) when installed onto a bolt or cap screw.  Both the automation and collar styles may be crimped in several ways.