Bolt DIN 931 M20x170 8,8 zinc shawl

Overview

The DIN 931 bolt has a hexagonal head and a partial metric thread that covers only a certain section of the shaft, while the rest of the shaft is smooth. This type of bolt is manufactured with a strength class of 8.8, which ensures reliability and resistance to mechanical loads. Diameters range from M6 to M36 and above, with corresponding thread pitches that comply with metric standards. DIN 931 bolts are ideal for applications where a smooth surface is important to reduce friction or to create support axes. Thanks to their zinc plating, these bolts also provide additional protection against corrosion, making them ideal for use in outdoor conditions or in aggressive environments.

Technical specifications

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

• Nominal diameters: M1.6 – M39 mm.
• Thread pitch: standard metric, e.g. 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 from 125 to 200 mm and above - in accordance with the standard.
• Strength class: 8.8
• Coating: zinc plate

DIN 931 bolts are characterised by a reliable design that ensures high strength and resistance to mechanical loads. Thanks to their partial thread, these bolts are ideal for use in various areas where a reliable fastener is required. The zinc coating provides additional protection against corrosion, making them suitable for use in high humidity or aggressive environments.

Analogues

DIN 931 Hexagon head bolt with partial thread is a reliable fastener that provides high strength and resistance to loads. This bolt is made of carbon steel, grade 8.8, which guarantees its ability to withstand significant mechanical loads.

Main characteristics of DIN 931:

• Head type: hexagonal, allowing convenient use of standard wrenches for installation and removal.
• Thread: partial, ensuring optimal grip on the material and preventing loosening of the connection.
• Zinc coating: provides additional protection against corrosion, making this bolt ideal for use in high humidity and aggressive environments.

This type of bolt is widely used in construction, mechanical engineering and other industries where reliable connections are important.

Analogues for DIN 931:

• GOST 7798-70 - analogue of DIN 931, having the same head type and partial metric thread.
• ISO 4014 - international standard that fully complies with DIN 931 in terms of shape, thread, diameters and lengths.

Areas of application

The DIN 931 bolt with hexagonal head and partial thread is a reliable fastener that has a wide range of applications thanks to its characteristics.

Areas of application for DIN 931 8.8 zinc-plated bolts:

• In construction – ideal for fastening structures such as beams, posts and trusses where partial threading is required to ensure a secure hold. 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 and housing elements subject to vibration loads, thanks to its high strength class 8.8.
• In aggressive environments – the zinc coating provides additional protection against corrosion, making this bolt ideal for use in open spaces or in conditions of high humidity.

Questions and Answers

Is it worth buying

The DIN 931 hexagon head bolt with partial thread is an excellent choice for many applications due to its strength and reliability. It is made of high-quality 8.8 grade steel, which provides high resistance to loads and mechanical stress. This bolt is available in diameters from M6 to M36 and in various lengths up to 300 mm, making it a versatile solution for a variety of projects. In addition, its zinc coating provides additional protection against corrosion, which increases the durability of the product in outdoor environments. Thanks to its characteristics, the DIN 931 bolt is ideal for use in construction, mechanical engineering and repair.

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 connecting elements where high strength and reliability are required. Diameters range from M6 to M36, and lengths can reach 300 mm. Strength class 8.8 provides resistance to significant loads, making it the optimal choice for structures that are subject to mechanical stress. The zinc coating provides additional protection against corrosion, which increases the service life of the product in aggressive environments.