A bolt is a form of threaded fastener with an external male thread. Bolts are thus closely related to, and often confused with, screws. A hex cap screw is a cap screw with a hexagonal head, designed to be driven by a wrench (spanner). The Grade 5.8 M10, M12, M14 Carbon Steel HDG Hex Bolt and Nut is a specific type of bolt and accompanying nut made from carbon steel with a grade rating of 5.8. These bolts come in various sizes, including M10, M12, and M14, and are fashioned with a hexagonal head for easier installation and removal using standard tools.
The "5.8" grade classification denotes the bolt's strength and durability, indicating its tensile strength in megapascals (MPa). A grade 5.8 bolt is generally considered to have a medium strength level, suitable for various applications in industries such as construction, machinery, and power-related sectors.
The HDG (Hot-Dip Galvanized) coating on these bolts provides added protection against corrosion and rust, making them particularly suitable for outdoor and harsh environments, including power-related applications where resistance to weathering is essential. These bolts, coupled with matching nuts, are commonly utilized in power-related infrastructure, such as power transmission towers, electrical installations, and other structural projects, where reliable fastening and durability are paramount. Matching the right bolt size and grade to the specific requirements of the power-related application is crucial for ensuring safe and secure assembly.
1:Metric Hex BOLT:GB/T 3098.1-2010,ISO898.1-2009 | ||||||||||
CLASS | 4.6;4.8 | 5.8 | 6.8 | 8.8 | 9.8 | 10.9 | 12.9 | |||
SIZE | ALL SIZE | ≦M12 | >M12 | ≦M8 | >M8 | ALL SIZE | ||||
COMMON MATERIALS | 1008 ~ 1015 | 1012 ~1017 | 10B21 / 1022 | 10B21 | 10B33 | 10B21 | 10B33 | 10B33 / SCM435/ML20MnTiB | SCM435 | |
ML08AL SWRCH8A~ SWRCH15A | SWRCH15A~ SWRCH18A | SWRCH22A | 35K |
|
35ACR | 10B35 |
|
AISI 4140 | ||
HEAT TREATMENT(YES/NO) | NO | YES |
Environmental protection equipment, medical equipment, communications equipment, electric power facilities, electronic products, food machinery, petrochemical industry, ship assembly, pump valve, pipe, building curtain wall, Buildings, machanical equipments, bridges, tunnels, high speed railways etc