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By certification 
wheel bolt zp/zyp/zinc green plated/HDG/DAC
Standard: per drwing or samples
Size: M6X16~M24x100 1/4X1" ~ 1"X5"
Thread: unc/unf, metric thread
Material: carbon steel, alloy steel, stainless steel
Finish: Plain, ZincPlated(Clear/Blue/Yellow/Black), black oxide, H.D.G, DAC,GOEMET
Packing: bulk in cartons (25kg Max.)+wood Pallet or according to customer special demand
Application: Structural Steel; Metal Buliding; Oil&Gas; Tower&Pole; Wind Energy
Test Equipments: Caliper,Go&No-go gauge,Tensile test machine,Hardness tester,Salt spraying tester, H.D.G thickness tester, 3D detector,Projector,Magnetic flaw detecter
Standard: per drwing or samples
Size: M6X16~M24x100 1/4X1" ~ 1"X5"
Thread: unc/unf, metric thread
Material: carbon steel, alloy steel, stainless steel
Finish: Plain, ZincPlated(Clear/Blue/Yellow/Black), black oxide, H.D.G, DAC,GOEMET
Packing: bulk in cartons (25kg Max.)+wood Pallet or according to customer special demand
Application: Structural Steel; Metal Buliding; Oil&Gas; Tower&Pole; Wind Energy
Test Equipments: Caliper,Go&No-go gauge,Tensile test machine,Hardness tester,Salt spraying tester, H.D.G thickness tester, 3D detector,Projector,Magnetic flaw detecter
