Aerospace. Internal six-lobe drives. Metric series Ingestion-build-137917 BS EN ISO 4126-4 and

BS EN ISO 4126-4 and BS EN ISO 4126-5

BS 8900-2 on the specification of framework assessment and managing sustainable development is useful for:

Reference method

technically-feasible practices and possible consequences for manufacturing processes and the supply chain

Aerospace. Internal six-lobe drives. Metric series Ingestion-build-137917 BS EN ISO 4126-4 and1 Scope This International Standard specifies the dimensions of metric internal six lobe drives used in metric screws in nominal thread diameter range 3 mm to 20 mm. NOTE Pending publication of an International Standard relating to limit gauges, special care is required to ensure that the dimensions and tolerances specified in this International Standard are confirmed by alternative means.