What is BS EN 2856 - Self-locking anchor nuts for aerospace applications about?
BS EN 2856 is a European Standard series that discusses components used in the aerospace industry. The purpose of BS EN 2856 is to provide the best industry design requirements for self-locking anchor nuts for aerospace applications to ensure resistance in loosening under vibrations and torque.
BS EN 2856 specifies requirements for closed corner, counterbored, fixed, reduced series anchor nuts, with a self-locking feature achieved by forming the upper portion out-of-round.
Nuts covered in BS EN 2856 are intended for use in aircraft assemblies, in which the fasteners are mainly objected to shear loads. The counterbore is deep enough to accommodate a bolt shank in excess of assembly thickness, as well as the incomplete threads.
Anchor nuts in BS EN 2856 are intended to be used with threaded parts of 1100 MPa tensile strength classification.
The cadmium plating restricts the application to a temperature not exceeding 235 °C.
Who is BS EN 2856 - Self-locking anchor nuts for aerospace applications for?
BS EN 2856 on self-locking anchor nuts for aerospace applications is useful for:
- Manufacturers and suppliers of self-locking anchor nuts
- Manufacturers of aerospace equipment and components
- The aerospace and defence industry
- Product design engineers
- Aeronautical engineers
- Regulatory bodies
Why should you use BS EN 2856 - Self-locking anchor nuts for aerospace applications?
Anchor nuts are self-wrenching, self-locking nuts designed for use in tight spaces. Anchor nuts offer a permanent nut element on the interior of the joint that can be screwed to a skin, access panel, or fairings. Self-locking nuts are used aboard aeroplanes to ensure that connections are secure and do not come loose during high vibration.
BS EN 2856 provides you guidance on required characteristics for self-locking anchor nuts, including configuration, dimensions, tolerances, surface roughness, materials, and surface treatment, enabling you to standardize the dimensional and physical properties of anchor nuts.
BS EN 2856 provides you guidance on the marking of anchor nuts to ensure proper identification, classification and applicability in aerospace applications.
BS EN 2856 creates a standardized approach for manufacturers of self-locking anchor nuts to adhere to if they supply their components for use by the aerospace and defence industry.
By adopting BS EN 2856, you can demonstrate the performance, reliability and durability of self-locking anchor nuts to ensure stable operability and resistance to vibration in aerospace applications.
