HDG hex bolts are used in a wide range of applications due to their durability and corrosion resistance. Here are some common uses: Construction: HDG hex bolts are used in construction for heavy machinery, steel structures, and bridges, providing stable and reliable connections under various climatic conditions. Marine and Coastal Applications: They are suitable for marine environments, meeting IAPMO-UES ER-192 code requirements for common wood framing applications. Transportation: HDG hex bolts are used in ships, vehicles, mining machinery, and aircraft, ensuring the firmness and durability of connections in harsh environments. Electrical and Mechanical Manufacturing: They are used in high-voltage lines, substations, generators, compressors, and machinery, providing high strength and stability. HDG hex bolts are a reliable choice for projects that require considerable gripping strength and are exposed to moisture, chemicals, or extreme temperatures. They are essential for ensuring the integrity and longevity of structures and equipment in various industries. Coarse Thread Superior Corrosion Resistance Hot Dipped Galvanized Finish Grade 307A Threaded Length: 6 of Thread Kit Includes: 40 USS Flat Washers, 20 Hex Nuts and 20 Split Lock Washers Minimum Tensile Strength: 60,000 PSI RoHS Compliant Specifications Met: ASTM F2329/F2329M or ASTM A153/A153M Minimum Coating Thickness: Coating thickness for sizes 3/8 “ & under : 0.0017” (43 microns) Coating thickness for sizes over 3/8“ : 0.0020” (50 microns) UPC 659455042914 Brand Fastener Depot Color Silver/Grey Size Name 5/8 x18 Item Shape Hexagonal Unit Count 20.0 Count Thread Size 5/8 -11 Finish Types Hot Dipped Galvanized Grade Rating Grade A Manufacturer Fastener Depot, LLC Fastener Type Bolt Item Diameter 0.63 Inches Material Type Carbon Steel Item Dimensions 18 x 0.62 x 0.93 inches Number of Pieces 20 Screw Head Style Hex Compatible Groove Diameter 5/8 -11 Inches