Aerospace series. Rivet, 100° reduced flush head, close tolerance. Inch series Ingestion-build-71203 BS EN 4509 provides users

BS EN 4509 provides users guidance on required characteristics for normal head screws for aerospace applications

they may impede the reaction of the polyisoprene with the chromic acid and the method is not applicable

All types of mobile nitrogen units and oxygen units with transportable gas cylinders interchangeable for filling purposes

BS EN 15696 gives recommendations on:

Aerospace series. Rivet, 100° reduced flush head, close tolerance. Inch series Ingestion-build-71203 BS EN 4509 provides users1 Scope This European Standard specifies the dimensions, tolerances and mass of rivets with 100 reduced flush head, close tolerance, inch series, for aerospace application.