Mack wheel bolt and nut

Car Make:Mack
OE NO.:632581569
SIZE:M18x1.5x76_86
Material:40Cr(SAE5140)/35CrMo(SAE4135)/42CrMo(SAE4140)
Grade/Quality:10.9 / 12.9
Hardness:HRC32-39 / HRC39-42
Finishing:Phosphated Zinc plated Dacromet
Color:BlackGreySilverYellow
Certificates:ISO9001:2015