BS 4185-1 67th Edition, July 31, 1967
Specification for Machine Tool Components - Part 1: Locknuts ("C" Type, Socket Set Screw Locking)
Includes all amendments and changes through Reaffirmation Notice , October 1, 2012
Additional Comments: INCLUDES AMENDMENT 2
Published By:British Standards Institution (BSI)
Materials, dimensions and tolerances, finish, designation and marking of separate millimetre and inch series, the millimetre series suitable for threaded components of diameter 10 mm to 125 mm, the inch series for those of diameter 1⁄2 in to 5 in.