Historical
SAE AS 1337A-1974 (SAE AS1337A-1974)
Selected Aerospace Diameter-Pitch Combinations of Metric 60~ Screw Threads for Nuts and Bolts ( Reaffirmed: Mar 1982 Jul 1991 May 1995 Oct 2001 May 2006 )
Content Provider
Society of Automotive Engineers [sae]