Historical
SAE AS 9572A-2002 (SAE AS9572A-2002)
Screw, machine-double hexagon extended washer head, drilled, PD shank, silver plated, Corrosion and Heat Resistant Steel, UNS S66286, 130 ksi min, .1380-40 UNJF-3A ( Reaffirmed: Jun 2007 )
Society of Automotive Engineers [sae]