What is BS EN 4851 - Countersunk normal head screws for aerospace applications about?
BS EN 4851 is a standard that covers countersunk normal head screws for aerospace applications, enabling improved connectivity and durability in aerospace applications.
BS EN 4851 specifies the characteristics of externally threaded fasteners, 100° countersunk normal head, Spiral Drive Recess, coarse tolerance normal shank, long thread, in alloy steel, cadmium plated, for aerospace applications.
BS EN 4851 also specifies classification for countersunk normal head screws that states, the minimum tensile strength of 1100 MPa and maximum operating temperature of 235 °C.
Who is BS EN 4851 - Countersunk normal head screws for aerospace applications for?
BS EN 4851 on countersunk normal head screws for aerospace applications applies to:
- Manufacturers of screws
- Dealers and importers of screws
- Testing houses for screws
- Quality assurance services
- Regulatory bodies
Why should you use BS EN 4851 - Countersunk normal head screws for aerospace applications?
A countersunk screw is one that is designed to sit flush against the object or surface it is inserted into. They ensure stable operability, durability and structural integrity in aerospace applications.
BS EN 4851 provides users guidance on requirements for screws including, configuration, dimensions, masses, tolerances of form and position, materials and surface treatment, enabling users to standardize the dimensional and physical properties of screws for aerospace applications.
BS EN 4851 provides users guidance on dimensions and masses depending on threads, diameters, length, recess code and mass, ensuring compatibility with existing systems and installations.
With obedience and compliance to BS EN 4851, users can develop and assess countersunk normal head screws, ensuring performance, resilience and vibration resistance in aerospace applications.
