Abstract / scope
ISO 14277 specifies the dimensions of metric ribbed drivers which are inserted into internal offset cruciform ribbed or unribbed drives used in metric screws in the nominal thread diameter range of 1,6 mm to 20 mm.
Aéronautique et espace — Embouts de tournevis, avec saillies antidérapantes, pour empreintes cruciformes déportées avec ou sans saillies antidérapantes — Série métrique
ISO 14277 specifies the dimensions of metric ribbed drivers which are inserted into internal offset cruciform ribbed or unribbed drives used in metric screws in the nominal thread diameter range of 1,6 mm to 20 mm.