What is BS EN 4847 – steel pan head screw for aerospace about?
Aerospace components need to meet stringent quality standards due to the extreme conditions that they are exposed to. BS EN 4847 discusses pan head screws for aerospace applications.
BS EN 4847 specifies the characteristics of externally threaded fasteners, pan head, Spiral Drive Recess, coarse tolerance normal shank, medium length thread, in alloy steel, cadmium plated, for aerospace applications.
Classification: 1 100 MPa1/235 °C2.
Who is BS EN 4847 – steel pan head screw for aerospace for?
BS EN 4847 on steel pan head screw for aerospace is useful for:
- Aerospace and defence industries
- Manufacturers of aircraft / spacecraft
- Agencies involved in manufacturing and supplying components for aerospace
- Testing agencies involved in the inspection of aerospace products
- Manufacturers and suppliers of steel screws
- Product development/innovation teams
- Quality control personnel
- Welders and Fabricators
- Procurement teams
Why should you use BS EN 4847 – steel pan head screw for aerospace?
Spiral drive recesses for threaded fasteners feature a recess that allows for full radial contact of the drive bit along with all four wings of the recess, providing up to twice the torque of legacy drive systems. The open recess design allows for heavy coatings and paints buildup without affecting fastener driveability. Other features include lower weight and a low radar return signature. The system minimizes cam-out and reduces damage to the surrounding airframe. Its off-angle driving capability is an advantage in cramped applications.
BS EN 4847 walks you through the requirements (configuration, dimensions, masses), tolerances of form and position, materials, surface treatment with the guidance on the designation, marking, and technical specification for steel pan head screws.
By adopting BS EN 4847, manufacturers can demonstrate the reliability of their steel pan head screws and build trust in their use throughout the aerospace supply chain.
With the use of BS EN 4847, you get to know the dimensions, tolerances, and qualification requirements of spiral drive recesses for threaded fasteners which assists you with vendor communication during procurement.
