BS EN 4121:2015

What is BS EN 4121 - characteristics of silver-plated shank nuts about?  

Shank nuts are used majorly in aircraft engine applications. They are installed by flaring the nut shank with a conical tool.  

BS EN 4121 specifies the characteristics of self-locking serrated shank nuts, silver plated on a thread, for aerospace applications. Classification: 1 100 MPa 1) / 650 °C 2). 

Who is BS EN 4121 - characteristics of silver-plated shank nuts for?  

BS EN 4121 on characteristics of silver-plated shank nuts is useful for:  

• Aerospace and defence industry  
• Manufacturers of aerospace equipment and components  
• Testing agencies involved in the inspection of aerospace products  
• Manufacturers and suppliers of shank nuts 
• Product design engineers  
• Aeronautical engineers  

Why should you use BS EN 4121 - characteristics of silver-plated shank nuts? 

Shank nuts are high temperature, high tensile strength nuts that are also are self-locking, self-retaining and self-wrenching. They come in a variety of configurations and materials. 

BS EN 4121 includes configuration, dimensions, tolerances, masses, materials, surface treatment, designation and installation of shank nuts. 

The guidelines in BS EN 4121 provide you with the standardized characteristics of shank nuts for industrial use so that the end customer gets a superior quality product.