Model NO.: A325M 8S Type: Hexagon Head Head Style: Hexagonal Grade: 10.9 Finish: Color-Zinc Plated Length: 1/4"-8" Port: Ningbo Specification: 8s HS Code: 7318159090 Material: High Strength Steel Connection: Common Bolt Standard: ANSI Application: Building Diameter: 1/2"-1 1/2" Heat Treatment: Yes Trademark: SD Origin: Ningbo, China STANDARD A325M GRADE 8s, 10s SIZE 1/2"-1 1/2" SURFACE TREAMENT Z.Y.Dacromet,H.D.G,ect MATERIAL High strength steel