technical standard that specifies the properties and dimensions of hexagon head bolts with full thread. It is a German standard, also known as Deutsches Institut für Normung (DIN) 933, and is commonly used in engineering and construction applications.
These bolts are made of carbon steel or alloy steel and have a hexagonal head, which makes them easy to tighten and loosen with a wrench or socket. The full thread means that the entire length of the bolt is threaded, providing greater holding power and resistance to vibration.
The DIN 933 standard specifies the dimensions of the bolt, including the length, diameter, and thread pitch. It also sets requirements for the mechanical properties, such as the tensile strength and hardness, and the surface finish.
Uses of DIN 933
used in a variety of applications where a strong and reliable fastener is required, particularly in situations where a threaded hole is present or where a full thread is needed for maximum holding power.
DIN 933 bolts are commonly used in a wide range of applications in various industries, including construction, manufacturing, and automotive. Some of the common uses of DIN 933 bolts are:
- Structural applications: DIN 933 bolts are often used in construction applications for fastening structural steel members, such as beams, columns, and trusses.
- Machinery and equipment assembly: They are used in the assembly of heavy machinery and equipment, such as engines, turbines, and generators.
- Automotive industry: DIN 933 bolts are used in the automotive industry for fastening engine components, chassis parts, and suspension systems.
- Aerospace: They are also used in the aerospace industry for fastening aircraft components and structures.
- Electrical applications: DIN 933 bolts are used to secure electrical components, such as transformers, switchgear, and generators.
- Marine applications: DIN 933 bolts are commonly used in marine applications for fastening deck hardware, rigging, and other structural components.
Overall, DIN 933 bolts are widely used in applications that require a high-strength and reliable fastener that can withstand heavy loads and stress. They are a popular choice for applications where safety and reliability are critical.
Materials for DIN 933
dimensions and mechanical properties of hexagon head bolts with full thread. The following are the commonly used materials for DIN 933 bolts based on different standards:
- ANSI Materials:
- ANSI B18.2.1 specifies that DIN 933 bolts can be made from carbon steel or alloy steel.
- ASME Materials:
- ASME B18.2.1 specifies that DIN 933 bolts can be made from carbon steel or alloy steel.
- ASME B18.104.22.168M specifies that DIN 933 bolts can be made from stainless steel.
- ASTM Materials:
- ASTM A307 specifies carbon steel bolts and studs with full thread.
- ASTM A193 specifies alloy steel and stainless steel bolting materials for high-temperature or high-pressure service.
- ASTM A320 specifies alloy steel bolting materials for low-temperature service.
- DIN Materials:
- DIN EN ISO 898-1 specifies the mechanical properties of bolts made from carbon steel or alloy steel.
- DIN EN ISO 3506-1 specifies the mechanical properties of bolts made from austenitic, martensitic, and ferritic stainless steel.
Overall, DIN 933 bolts can be made from various materials, including carbon steel, alloy steel, and stainless steel, depending on the specific requirements of the application and the standards followed. It is important to select the appropriate material that meets the mechanical properties required for the application to ensure the reliability and safety of the fastener.
DIN 931 vs DIN 933
technical standards that specify the properties and dimensions of hexagon head bolts, but there are some differences between the two standards:
- Thread length: The most significant difference between DIN 931 and DIN 933 is the thread length. DIN 931 specifies hexagon head bolts with partial thread, while DIN 933 specifies hexagon head bolts with full thread. This means that the thread on DIN 933 bolts extends along the entire length of the shaft, while the thread on DIN 931 bolts only covers a portion of the shaft.
- Applications: DIN 933 bolts are generally used in applications where a full thread is required, such as for clamping two unthreaded objects together or where a threaded hole is present. DIN 931 bolts are commonly used in applications where a partial thread is required, such as in structural steel connections, machinery and equipment assembly, and automotive applications.
- Strength: The mechanical properties of DIN 931 and DIN 933 bolts may differ depending on the material used and the specific requirements of the application. However, in general, DIN 933 bolts may have slightly higher tensile strength compared to DIN 931 bolts due to the full thread design.
In summary, the main difference between DIN 931 and DIN 933 bolts is the thread length, with DIN 931 bolts having a partial thread and DIN 933 bolts having a full thread. The choice of bolt standard will depend on the specific requirements of the application.
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