Fasteners – Bolts, screws, studs and nuts – Symbols and designations of dimensions
This International Standard lays down the method of dimensioning bolts, screws, studs and nuts, recommended for use unless otherwise specified in the appropriate product Standards.
It includes common symbols and describes the feature.
Check out other specifications
Standard Guide for Selection of Committee F-16 Fastener Specifications
Geometrical product specifications (GPS) — Fundamentals — Concepts, principles and rules
Whitworth Pipe Threads for Tubes and Fittings – Cylindrical Internal Thread and Conical External Thread – Gauging System and Use of Gauges
PREVAILING-TORQUE TYPE STEEL HEX AND HEX FLANGE NUTS REGULAR AND LIGHT HEX SERIES
Copper and copper alloys — Rod for general purposes
High-strength hexagon head bolts with large widths across flats for structural steel bolting