SAE J 58 Bihexagonal Head Bolts With Flange

EN2874 Aerospace Series-bolts, Large Bihexagonal Head, Close Tolerance Normal Shank, Medium Length Thread

ISO9254 Aerospace - Bolts, Normal Spline Head, Normal Or Pitch Diameter Shank, Long Length MJ Threads, Metallic Material, Coated Or Uncoated, Strength Classes Less Than Or Equal To 1100 MPa

ASME B18.2.5M 12-Point Flange Head Screws (12.9 / ASTM F468M)

ANSI/ASME B18.2.7.1M (R2009) Metric 12-spline Flange Screws

ISO9255 Aerospace - Bolts, Normal Spline Head, Normal Shank, Short Or Medium Length MJ Threads, Metallic Material, Coated Or Uncoated, Strength Classes Less Than Or Equal To 1100 MPa

DIN65438 Aerospace; Bihexagonal Head Bolts, Close Tolerance, With Mj-thread, Short Thread Length, In Titanium Alloy; Nominal Tensile Strength 1100 Mpa, For Temperatures Up To 315 °c

IFI115 Flange 12-Point Screws