DIN 931 12,9 hex Bolt with partial thread

Overview

DIN 931 12.9 bolt with hexagonal head and partial thread. This bolt is characterised by its high strength class of 12.9, which indicates its ability to withstand significant loads. The partial thread only covers a certain section of the shank, leaving a smooth part that ensures reliable fastening and reduces friction. Diameters can range from M6 to M30 and above, with corresponding thread pitches that comply with standards. DIN 931 12.9 bolts are ideal for applications where strength of connection and a smooth shank for supporting axles or fastening structural elements are important.

Technical specifications

Technical specifications for DIN 931 hexagon head bolts with partial thread:

• Nominal diameters: M1.6 – M39 mm.
• Thread pitch: metric standards such as M3-0.5; M4-0.7; M5-0.8; M6-1.0; M8-1.25; M10-1.5; M12-1.75 and others.
• Thread length: for bolts with a length of L ≤ 125 mm – approximately 16-30 mm; for L within the range of 125-200 mm and above – in accordance with standard requirements.
• Strength class: 12.9
• Coating: uncoated

Analogues

DIN 931 bolts with hexagonal heads and partial threads are reliable fasteners used in various industries. They are made of high-quality steel, which ensures high strength and resistance to loads.

Main characteristics of DIN 931 12.9:

• High strength: strength class 12.9 guarantees excellent performance, making these bolts ideal for use in high-load conditions.
• Partial thread: the partial thread design provides better fixation in materials, reducing the risk of thread stripping.
• Hexagonal head: easy to use and can be installed with standard tools.
• High corrosion resistance: the surface treatment of the bolts prevents corrosion and extends their service life.

Equivalents for DIN 931:

• GOST 7798-70 - complies with DIN 931, with the same head type and thread characteristics.
• GOST 7805-70 - equivalent to DIN 931, which also complies with international standards.
• ISO 4014 - international standard that fully complies with DIN 931 in terms of shape, thread, diameters and lengths.

Areas of application

The DIN 931 hexagon head bolt with partial thread is an important element in various industries. Its characteristics make it ideal for use in many critical conditions.

Areas of application for DIN 931 12.9 bolts:

• In mechanical engineering - reliable fastening for mechanisms where high strength connections are required and partial threading ensures optimal fixation.
• In the construction industry - used to connect structural elements such as beams and posts, where it is important that the smooth part of the bolt ensures a correct fit.
• In the automotive industry - for fastening important components that are subject to vibration loads, where high wear resistance is required.
• In environments with increased corrosion resistance requirements, they are available in stainless steel, making them suitable for use in conditions with high humidity or aggressive chemicals.

These bolts are made of high-strength 12.9 grade steel, which ensures their reliability and durability in various applications.

Questions and Answers

Is it profitable to buy

The DIN 931 hexagon head bolt with partial thread is the ideal solution for those looking for a reliable and durable fastener. This bolt is manufactured in diameters from M6 to M36 and is available in lengths up to 300 mm. The main advantage of grade 12.9 bolts is their high load resistance, which makes them ideal for use in structures where increased reliability is required. In addition, the availability of A2/A4 stainless steel options allows them to be used in conditions of high humidity or corrosion. Thanks to these characteristics, the DIN 931 bolt is an excellent choice for a variety of industrial and construction projects.

Where it is used

The DIN 931 hexagon head bolt with partial thread is an important element in various industries, particularly in construction and mechanical engineering. It is used for reliable connection of metal structures, as well as in assemblies that are subject to significant loads. This type of bolt is characterised by high strength and resistance to deformation, making it an ideal choice for industrial equipment and support structures. Available diameters range from M6 to M36, and lengths can reach 300 mm, ensuring versatility in use.