What is BS EN 3725 - Pan head screws for aerospace applications about?
BS EN 3725 is a European Standard series that covers pan head screws for aerospace applications to ensure structural integrity and vibration resistance in aerospace operations.
BS EN 3725 specifies the characteristics of pan head screws with six-lobe recess, threaded to head, in TI-P64001, anodized, MoS2 coated, for aerospace applications.
BS EN 3725 specifies the strength class of pan head screws which is the minimum tensile strength of 1100 MPa at the ambient temperature.
Note: Taking account of the recess geometry, the strength class to be used for the seating torque calculation shall not be greater than 900 MPa.
Who is BS EN 3725 - Pan head screws for aerospace applications for?
BS EN 3725 on pan head screws for aerospace applications is useful for:
- Manufacturers and suppliers of pan head screws for aerospace
- Manufacturers of aerospace equipment and components
- Quality assurance services
- Product design engineers
- Aeronautical engineers
- National authorities
Why should you use BS EN 3725 - Pan head screws for aerospace applications?
Pan head screws are a type of non-countersunk screw head that is commonly used in self-tapping, self-drilling and machine screws. They have a recessed socket, wide heads, a flat bearing surface, high vertical or curved sides, and a flat or slightly domed top surface.
BS EN 3725 provides you guidance on required characteristics for pan head screws, including configuration, dimensions, tolerances, masses, materials and surface treatment, enabling you to standardize the dimensional and physical properties of pan head screws.
BS EN 3725 provides you guidance on dimensions for pan head screws based on thread code, length code, mass and designation to ensure compatibility with aerospace systems and installations.
With compliance to the best industry requirements specified in BS EN 3725 you can develop and assess pan head screws to ensure a firm hold, vibration resistance and stability in aerospace applications.