External hexagon bolt standard
External hexagonal bolts are a common bolt type, also known as hex head bolts or hexagonal bolts. They usually comply with international standards. Here are some common external hexagon bolt standards:
1. DIN standard: Hexagonal bolts comply with German Industrial Standards (DIN). Common DIN standards include DIN 931 (partial thread), DIN 933 (full thread) and DIN 912 (socket head), etc.
2. ISO standards: The International Organization for Standardization (ISO) has developed a series of external hexagon bolt standards. Among them, ISO 4014 (partial thread) and ISO 4017 (full thread) are the most common ISO standards.
3. ANSI/ASME standards: The American National Standards Institute (ANSI) and the American Society of Mechanical Engineers (ASME) jointly developed a series of external hexagon bolt standards, such as ANSI/ASME B18.2.1 and ANSI/ASME B18.2.3.1, etc.
These standards specify parameters such as dimensions, thread specifications, materials and properties of external hexagonal bolts. For example, the diameter, length, thread type (partial thread or full thread), thread specification (such as M6, M8, M10, etc.) and material of the bolt.
It should be noted that the specific standard of external hexagonal bolts used depends on local practices and engineering requirements. When selecting external hexagonal bolts, appropriate standards should be selected based on specific application scenarios and engineering needs, and ensure compliance with relevant quality and performance requirements. If necessary, please consult professional engineers or suppliers for more accurate advice and information.
In addition to the common external hexagon bolt standards mentioned above, there are some other standards, as follows:
1. JIS standards: Japanese Industrial Standards (JIS) also have a series of standards applicable to external hexagonal bolts, such as JIS B1180 and JIS B1189.
2. GB standards: Chinese national standards (GB) have also formulated some standards applicable to external hexagonal bolts, such as GB/T 5782 and GB/T 5783.
3. BS standards: British Standards (BS) also have a series of standards applicable to external hexagonal bolts, such as BS 4190 and BS 3692.
These standards usually stipulate the diameter, length, thread specifications, materials and other parameters of bolts, and provide corresponding technical requirements and test methods.
When selecting external hexagonal bolts, bolts that meet the corresponding standards should be selected according to local practices and engineering requirements. At the same time, it is also necessary to ensure that the selected bolts meet relevant quality and performance requirements to ensure the reliability and safety of the fixed connection.
If you have special needs or specific questions about the specifications of external hexagonal bolts, it is recommended to consult a professional engineer or supplier to obtain more accurate information and suggestions.
