... hardness grade 4)Made in China Features: Zinc plated bolt for alxe 1) high strength 2) Protective finish: zinc plated, black ... oxide3) High hardness grade4) Applicable vehicles: Hino, Isuzu, Mitsubishi, Suzuki; Scania, Volvo, Iveco, Benz,Fiat,Renault, Man, Steyr, Tatra, Kamz ...