Bolt DIN 931 M42x250 A2

Overview

The DIN 931 A2-70 bolt is made of stainless steel, has a hexagonal head and a partial metric thread. A special feature of this bolt is its corrosion resistance thanks to the use of A2-70 stainless steel, making it ideal for applications in wet or aggressive environments. The partial thread allows for a secure connection, where the smooth part of the shank ensures optimal friction reduction and prevents wear. The strength class 70 indicates the high reliability and durability of the bolt, making it suitable for various structures and mechanisms. Diameters can range from M6 to M30 and above, in accordance with metric thread standards, allowing them to be used in many industries. DIN 931 A2-70 bolts are ideal for applications where corrosion resistance and mechanical reliability are important.

Technical specifications

• Material: A2-70 stainless steel, which provides high corrosion resistance
• Technical specifications of DIN 931 A2-70 hexagon head bolts with partial thread:
• Nominal diameters: from M1.6 to M39 mm.
• Thread pitch: standard metric, 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 between 125-200 mm and above - greater, in accordance with standards.

Analogues 

DIN 931 A2-70 is a hexagon head bolt with partial thread, made of A2-70 grade stainless steel. This standard provides high corrosion resistance, making it an ideal choice for use in aggressive environments, particularly in construction, mechanical engineering and other industries where rust prevention is important.

Key features of DIN 931 A2-70:

• A2-70 stainless steel guarantees durability and reliability.
• The hexagonal head ensures ease of installation and removal.
• Partial threading allows for optimal connections in cases where full threading is not necessary.

Equivalents for DIN 931 A2-70:

• GOST 7798-70 - corresponds to DIN 931, has a similar head design and partial metric thread.
• GOST 7805-70 - is also equivalent to DIN 931 / ISO 4014.
• ISO 4014 - international standard that fully complies with DIN 931 in terms of shape, thread, diameters and lengths.

Areas of application

DIN 931 A2-70 bolts with hexagonal heads and partial threads have a wide range of applications due to their unique characteristics:

• In construction, they are ideal for fastening metal structures, supports, trusses, where reliability of the connection is important due to the partial thread, which ensures a secure fit of the smooth part. Available in diameters from M12 to M24 and lengths from 40 to 200 mm.
• In mechanical engineering - used to connect various components such as brackets, housings and other elements subject to vibration loads, where stability and durability of connections are important.
• In aggressive environments - made of A2-70 stainless steel, these bolts are suitable for use in outdoor and wet environments, providing high corrosion resistance and long service life.

Questions and Answers

Is it worth buying

The DIN 931 A2-70 hexagon head bolt with partial thread is the ideal solution for applications where corrosion resistance and connection reliability are important. This bolt is made of stainless steel, which provides high resistance to aggressive environments. Available in diameters from M6 to M30 and lengths up to 200 mm. Thanks to its characteristics, DIN 931 A2-70 ensures long-term use even in difficult conditions, making it a popular choice among professionals.

Where it is used

The DIN 931 A2-70 stainless steel bolt with a hexagonal head and partial thread is used in many areas, including construction, mechanical engineering and industry. This bolt is highly corrosion resistant due to its stainless steel construction, making it ideal for use in high humidity or aggressive environments. Diameters range from M6 to M30, and lengths can reach 200 mm.