Bolt DIN 931 M20x70 5,6 zinc

Overview

The DIN 931 bolt features a hexagonal head and partial metric thread, making it a versatile solution for many design tasks. The threaded portion of the shank provides a secure connection, while the smooth portion allows the bolt to be used as an axial support or to reduce friction in mechanisms. The strength class is usually 5.6, which indicates sufficient strength for light and medium load applications. The bolt diameter can vary from M6 to M36, depending on the project requirements, and the thread pitch complies with metric thread standards. DIN 931 bolts are often used in mechanical engineering, construction and other industries where reliability and ease of installation are important.

Technical specifications

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

• Nominal diameters: M1.6 – 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, and for L from 125 to 200 mm and above – correspondingly greater, in accordance with standards.
• Strength class: 5.6 for steel bolts, providing optimum strength for many applications.
• Coating: zinc

Analogues

DIN 931 Hexagon head bolts with partial thread are an important element in mechanical connections, ensuring the reliability and strength of structures. They have a partial metric thread, which allows parts to be conveniently fastened without the risk of damage.

Main characteristics of DIN 931 5.6 zinc:

• Made of high-quality steel, which ensures high resistance to mechanical loads.
• The zinc coating provides additional protection against corrosion, making it ideal for use in high humidity conditions.
• The standard hexagonal head allows for convenient use of wrenches for installation and removal.
• The partial thread reduces the weight of the bolt while maintaining its strength and functionality.

Analogues for DIN 931:

• GOST 7798-70 - corresponds in shape and characteristics, has a similar partial thread and head type.
• ISO 4014 - international standard that fully complies with DIN 931 in terms of shape and dimensions.

Areas of application

The DIN 931 hexagon head bolt with partial thread is an important element in many industries due to its unique characteristics.

Main areas of application:

• In the construction sector, this bolt is ideal for connecting metal structures, supports and trusses, as the partial thread ensures a secure fastening of the smooth part, which is particularly important for heavy loads. Diameters range from M12 to M24, and lengths can reach 40-200 mm.
• In mechanical engineering – used for mounting brackets, housing elements and in structures subject to vibration loads, where the strength of the connection is important.
• In aggressive environments, zinc-coated bolts (class 5.6) provide corrosion protection, making them ideal for outdoor use or in high humidity conditions.

This bolt provides reliability and durability, making it indispensable in various engineering solutions.

Questions and Answers

Is it profitable to buy

The DIN 931 hexagon head bolt with partial thread is an excellent choice due to its versatility and high strength. This type of bolt is available in diameters from M6 to M36 and can be up to 300 mm long. It is made of high-quality steel, which gives it a strength class of 5.6, making it ideal for applications where reliable fastening without excessive weight is required. In addition, the bolts can be zinc-plated for additional corrosion protection, which increases their durability. Thanks to these characteristics, DIN 931 is popular in many industries, including construction and automotive.

Where it is used

The DIN 931 hexagon head bolt with partial thread is widely used in various fields, including construction, mechanical engineering and industry. This type of bolt is ideal for fastening structures that are subject to significant mechanical loads. Available diameters range from M6 to M36, with lengths up to 300 mm. The bolts are made of grade 5.6 materials, which ensures their reliability and corrosion resistance thanks to a zinc coating. These characteristics make DIN 931 the optimal choice for applications where a combination of strength and protection against external influences is important.