Material ：40Cr (Customizable)
Thread Size ：M20
Thread Pitch : 1.5MM
Total length : 53
MMKnurl Diameter：20.8MM
Length beloww head：46MM
Item Hardness : 34-38HRC (Customizable)
Item Grade : 10.9 (Customizable)
Item Weight ：0.475KG
Surface Treatment : Phosphating/Electroplating/Dacromet/Black Electrophoresis (Customizable)
Guarantee：1 year
Fastener Type: Truck Wheel Bolts
