ANSI B1.20.3-1976 DryseaI Pipe Threads (Inch)

American National Standards Institute (ANSI). ANSI B1.20.3 approved and formally designated as American National Standards on November 18,1976. 30p. This Standard contains nomenclature of screw threads; form of threads; diameter and pitches of screws for various uses; classification of thread fits, tolerances and allowances for threaded parts; and the gaging of threads. Screw threads for fire hose couplings are not included within the scope.