Basic Info. Model NO.:ASTM A325S   Trademark:SD Standard:ASTM Material:High Strength Steel Type:Hexagon Head Connection:Common Bolt Head Style:Hexagonal Property Grade:TYPE1,A325M 8S Heat Treatment: Need Heat Treatment Product Description We are special Manufacturer is specialized in High strength steel structural bolts, such as A325, DIN6914 and so on. 1. Material: Mild(1008/1010), Medium Carbon steel(35#/45#), Alloy Steel(40Cr/35CrMo/4140), etc 2. Sizes: From 1/2-1 1/2" all sizes 3.Length:From 1-1/2-12" all sizes 4. Surface Treatment:Plain/Black Finish/Zinc（Cr3+) Plated /Hot Dipped Galvanized (H.D.G)/Dacromet ,etc.According to Customers request. Advantages： -Competitive Price! -Well and High Quality Control! -Satisfactory Service! -OEM service available! -Customer’s Design and Logo are Welcome!