BSI - BS 4190
ISO Metric Black Hexagon Bolts, Screws and Nuts
|Publication Date:||30 November 1967|
|ICS Code (Bolts, screws, studs):||21.060.10|
|ICS Code (Nuts):||21.060.20|
General dimensions and tolerances of bolts, screws and nuts with ISO metric threads to BS 3643 in diameters from 5 mm to 68 mm. For the convenience of users requiring larger sizes further information is provided in an appendix.