1 Scope
This British standard specifies the general requirements for metric and inch protruding
head steel aerospace bolts of tensile strength of 1 250 MPa (180 000 lbf/in2) or greater.
The requirements related to nominal size are presented in individual tables Text deleted for use as appropriate to the relevant bolt specification. The values quoted for
metric and inch bolts have a proportional relationship and are not direct conversions.