Bolt ISO 7380-1 M4x25 10,9 zinc-nickel black

Overview

The ISO 7380-1 bolt with a semi-round head and internal hexagon is the ideal choice for applications where aesthetics and functionality are important. This fastener ensures a secure connection thanks to its design, which allows for precise tightening without the risk of damage. The semi-round head shape facilitates convenient installation in confined spaces while maintaining the product’s aesthetic appearance. The bolts are made of carbon steel and feature a black zinc-nickel coating, which provides additional corrosion protection.

Coating: Black zinc-nickel. The zinc-nickel coating is an innovative anti-corrosion solution for fasteners, combining high protective performance, mechanical strength, and environmental safety.

The key advantages of the zinc-nickel coating are:

• Excellent corrosion resistance—more than three times higher than that of regular zinc;
• Low risk of hydrogen embrittlement;
• Compatibility with aluminum—does not form galvanic couples and does not cause corrosion when combined with aluminum parts;
• Enhanced heat resistance—retains protective properties under temperature fluctuations and during prolonged operation in high-temperature conditions;
• Mechanical strength—harder than pure zinc, with better resistance to scratches and wear;
• Environmental friendliness—less formation of oxidation products, resulting in lower zinc emissions into the environment throughout the product’s entire life cycle.
• Aesthetics and low visibility—the coating has a deep black color, making it virtually invisible.

Areas of application

ISO 7380-1 bolts with a half-round head and internal hexagon, made from Grade 10.9 material with a black zinc-nickel coating, are indispensable components in modern manufacturing. They offer high strength and corrosion resistance, making them ideal for use in harsh environments, such as the automotive industry, as well as in the manufacture of machinery and equipment. Thanks to their shape, these bolts are suitable for use in confined spaces where traditional options may be ineffective. The internal hexagon ensures easy installation and removal. These bolts are an excellent choice for projects where not only mechanical properties but also aesthetic appeal are important.

Technical specifications

Technical specifications for ISO 7380-1 10.9 black zinc-nickel bolt with a semi-round head and internal hexagon

Questions and answers

Is it profitable to buy

Purchasing ISO 7380-1 bolts with a half-round head and internal hexagon is a smart choice for those who value reliability and aesthetics in their projects. These bolts are ideal for applications where a low head height and ease of installation are important. Made of black zinc-nickel-coated steel, these bolts are not only durable but also corrosion-resistant. At dinmark.com.ua, you’ll find a wide selection of these bolts at attractive prices, making them ideal for both household and industrial use.

Where it is used

ISO 7380-1 bolts with a half-round head and internal hexagon are designed for use in various industries where a reliable and aesthetically pleasing connection is essential. These bolts are ideal for mechanical engineering, automotive manufacturing, electronics, the furniture industry, and construction. Thanks to their low-profile design, they are perfect for installation in confined spaces, making them indispensable in situations where space is a critical factor.

The bolts are made of high-quality carbon steel with a black zinc-nickel coating, which provides excellent corrosion resistance. Grade 10.9 ensures high reliability and durability, making them ideal for structures that require regular maintenance or disassembly. These bolts are an excellent choice for those seeking a combination of aesthetics and functionality.