Bolt DIN 933 M20x120 A2

Overview

DIN 933 A2-70 Hexagon head bolt with full thread is a reliable fastener with a hexagon head and a thread that runs from the head to the very end of the shaft. Made of A2-70 stainless steel, this bolt offers high corrosion resistance and strength under load. Its strength makes it the ideal choice for applications where reliability and durability of connections are important, particularly in outdoor environments.

Technical specifications

Technical characteristics of DIN 933 A2-70 bolt with hexagonal head and full thread:

• Standard: DIN 933, equivalent to ISO 4017
• Material: A2 stainless steel, which provides high corrosion resistance
• Strength class: 70, which guarantees good mechanical strength and reliability
• Diameters: M6, M8, M10, M12, M14, and other options are available
• Lengths: standard options from approximately 10 mm to 150 mm, depending on the selected diameter
• Thread pitch: metric thread with typical pitches of 1; 1.25; 1.5; 1.75 mm for diameters M6–M12, as well as larger ones in accordance with the standard
• Coating: no additional coating, as stainless steel already has high corrosion resistance, but options with other coatings may be available depending on operating conditions.

Analogues 

Equivalents of DIN 933 A2-70:

• ISO 4017 - fully equivalent standard with hexagonal head and full metric thread, similar to DIN 933 A2-70.
• GOST 7798-70 - Ukrainian standard, equivalent to DIN 933 A2-70 and ISO 4017.
• GOST 7805-70 - another GOST standard with similar technical characteristics in terms of wrench size, diameter, and thread pitch, with minor differences.
• DIN 558 - also referred to as an analogue of DIN 933 A2-70 and ISO 4017; has differences in accuracy class, for example, C, or in some shape parameters, but is generally considered interchangeable in many situations.

Areas of application 

DIN 933 A2-70 bolts with hexagonal heads and full threads are widely used in various industries, including mechanical engineering, where they are used to assemble mechanisms, brackets, and metal structures. In the construction industry, they are used for reliable connection of frames, support structures, and formwork elements. In the automotive industry, these bolts are used to secure subframes, engine brackets, and suspension elements. In addition, they are suitable for use in the energy and electrical engineering sectors, where they are used to install electrical panels, supports, and fasten insulation materials. Thanks to their full thread, these bolts allow for adjustment and changes in fastening length, making them versatile in use.

Questions and Answers

Is it profitable to buy?

Purchasing a DIN 933 A2-70 bolt with a hexagonal head and full thread is a cost-effective solution, especially when high corrosion resistance and reliability are required. The Dinmark range includes bolts with strength class A2-70, which combine excellent mechanical strength and corrosion resistance. Various diameters from M2 to M72 are available, as well as different finishes, allowing you to choose the perfect bolt for your specific needs.

Where it is used

DIN 933 A2-70 hexagon head bolts with full thread are widely used in various fields, including: in construction - for connecting metal structures, frames, and mounting elements; in mechanical engineering - for assembling housings, brackets, and connections; at industrial facilities - for fastening equipment, supports, and connections using washers and nuts. This type of bolt is characterized by high strength and corrosion resistance, making it an ideal choice for use in high humidity and aggressive environments.