BS EN 4844:2022

What is this BS EN 4844 - Aerospace series – Screws about?

BS EN 4844 discusses aerospace series and screws, 100° countersunk normal head, Spiral Drive Recess, threaded to head, in heat and corrosion resisting steel, passivated with a focus on classification: 1 100 MPa (at ambient temperature) / 425 °C.

BS EN 4844 specifies the characteristics of externally threaded fasteners, 100° countersunk normal head, Spiral Drive Recess, threaded to head, in heat and corrosion resisting steel, passivated, for aerospace applications. Classification: 1 100 MPa1/425 °C2.

Who is BS EN 4844 - Aerospace series – Screws for?

BS EN 4844 on aerospace series is useful for:

• Defence Industry
• Aerospace Industry
• Manufacturers of aerospace equipment and components
• Testing agencies involved in the inspection of aerospace products

Why should you use BS EN 4844 - Aerospace series – Screws?

Aerospace and Defence Standardisation (ASD-STAN) draws attention to the fact that it is claimed that compliance with BS EN 4844 involves the use of a patent “Spiral Drive System for Threaded Fasteners” EP1025370B1. BS EN 4844 provides dimensions and tolerances that are expressed in millimetres and apply after surface treatment.

BS EN 4844 discusses requirements, designation, marking, and technical specifications.

BS EN 4844 will help you to understand the characteristics of externally threaded fasteners.