DIN933 Bolt 3М8х25 8,8 Delta пр контр

Overview

DIN 933 8.8 Delta Hexagon Head Bolt with Full Thread is a high-quality fastener with a hexagon head and a thread that runs from the head to the end of the shaft. This bolt is made of grade 8.8 steel, which provides increased strength and resistance to mechanical stress. Additionally, it is equipped with counterbore holes in the head, which contributes to more reliable fastening and prevents unauthorized unscrewing. This bolt is ideal for applications where high reliability and safety are important.

Technical specifications

Technical characteristics of DIN 933 8.8 Delta bolt with hexagonal head and full thread, counterbore holes in the head:

• Standard: DIN 933, equivalent to ISO 4017
• Material: carbon or alloy steel, stainless steel options also available
• Strength class: 8.8, indicating high strength and reliability
• Diameters: M6, M8, M10, M12, M14, and others
• Lengths: standard options from ≈ 10 mm to ≈ 150 mm, depending on diameter
• Thread pitch: metric thread, main pitches - 1; 1.25; 1.5; 1.75 mm for diameters M6–M12, as well as larger ones in accordance with the standard
• Coating: zinc (normal or hot-dip galvanized), yellow zinc, uncoated, as well as brass or stainless steel options, depending on the conditions of use. Delta-MKS coating is a protective dispersed zinc anti-corrosion coating. Delta-MKS provides highly effective cathodic protection against corrosion.

Analogues

The DIN 933 8.8 Delta bolt with a hexagonal head and full thread is a reliable fastener that ensures high strength and stability of structures. This type of bolt has counterbore holes in the head, which allows it to be used in systems with additional safety elements, such as lock nuts or washers.

Analogs of the DIN 933 8.8 Delta standard:

• ISO 4017 - a similar standard that provides for the use of hex bolts with full metric threads.
• GOST 7798-70 - a standard that also meets the requirements of DIN 933 8.8 Delta.
• GOST 7805-70 - another GOST variant with similar technical characteristics, such as wrench size, diameter, and thread pitch, with minor differences.
• DIN 558 is a standard that can be used as an analogue to DIN 933 8.8 Delta; it differs in accuracy class and certain shape parameters, but remains interchangeable in many cases.

Areas of application 

The DIN 933 8.8 Delta bolt with a hexagonal head and full thread, equipped with counterbore holes in the head, is an important element in various industries. It is often used in mechanical engineering for reliable connection of machine components and mechanisms, as well as in the manufacture of metal and steel structures. In the construction sector, this bolt is indispensable for connecting metal frames, support systems, and when installing formwork. In the automotive industry, it secures important elements such as subframes and engine mounts. In addition, due to its strength, the bolt is used in the energy and electrical engineering sectors for the installation of electrical panels and the fastening of various insulators. The full thread allows for easy adjustment of the fastening, and the counterbore holes in the head provide additional safety by preventing self-loosening under vibration and load conditions.

Questions and Answers

Is it profitable to buy?

Purchasing DIN 933 8.8 Delta bolts with hexagonal heads and full threads, as well as counterbore holes in the head, is an excellent solution for those who require reliability and high standards. Our range includes bolts with a strength class of 8.8, which provide excellent resistance to loads. We offer a variety of diameters from M2 to M72, as well as various coatings, including zinc and stainless steel, allowing you to find the perfect option for your project.

Where it is used

DIN 933 8.8 Delta bolt with hexagonal head and full thread is an important element in various fields, including: construction - metal structures, frame systems, mounting parts; mechanical engineering - housing parts, brackets, connections; industry and manufacturing - equipment, support systems, fasteners using washers and nuts. This type of bolt also has counterbore holes in the head, which provides additional reliability and prevents self-loosening during operation.