Finish Hex Nut Size:1/4'"-1-1/2"; M6-M42 ... plated,H.D.G etc. Products information: Finish Hex Nut Standard: ASME/ANSI B18.2.2; DIN934, DIN555 etc ... of nut:Finished nut,Finished jam nut,Heavy hex nut,Heavy hex jam nut,Square nut,Hex Flange nut, Lock Nut,Hex coupling nut,Wing nut,Cap nut,Keep nut, ... 4Class:4, 5, 6, 8, 10,12Size: Inch Size; Metric SizeThread: M, UNC, UNFFinish: Plain, Black, Zinc Plated/ZP, ...