The Ultimate Guide To Iso 4014 Hex Head Screws

iso 4014 hex head screw

Hex head screws are a type of fastener with a hexagonal head shape. They are typically made from steel and are available in a range of grades and sizes. The ISO 4014 hex head screw is one of many types of hex head screws, along with the ISO 4017, which has a thread up to the head of the bolt. These screws are used in a variety of applications, including bolting large and forged parts in the automotive, nuclear power, railway, and construction industries.

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ISO 4014/4017 DIN 931/933 Hex Head Screws

These screws are available in different thread lengths, including fully threaded and partially threaded options. The length of the bolt, diameter of the thread, head height, and size of the hex head are some of the critical dimensions that define these screws. They are commonly used in bolting assemblies and come in a range of sizes to meet specific requirements.

DIN 931 and DIN 933 refer to the standards for the screws, with DIN 933 being the equivalent norm for ISO 4017. The ISO 4014 standard, on the other hand, specifies partially threaded hexagon head screws. These screws are available in various materials, including stainless steel, brass, and plastic. The choice of material depends on the specific application and environmental conditions.

When selecting ISO 4014/4017 DIN 931/933 Hex Head Screws, it is essential to consider factors such as the required strength, corrosion resistance, and compatibility with the application. These screws are commonly used in construction, engineering, and other industries where secure and reliable fastening is required. It is always recommended to refer to the relevant standards and seek expert advice to ensure the appropriate screw is chosen for the specific application.

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ISO 4017 Hexagon Head Screws

The ISO 4017 hexagon head screws come in different steel grades, including 8.8, 10.9, and 12.9. They can also be made from stainless steel, with grades such as A2-70 and A4-70. The choice of material and grade depends on the specific application and the desired level of corrosion resistance and strength.

These screws are commonly used in a range of industries, including construction, engineering, and automotive. They are often chosen for their high strength and ease of installation, as the hexagon head provides a secure grip for tools during tightening and removal.

It is important to note that the ISO 4017 standard has been updated, with the latest version being ISO 4017:2022. This new version supersedes the previous edition, ISO 4017:2011, which has been withdrawn. The updated standard ensures that the screws meet the latest quality and performance requirements.

When using ISO 4017 hexagon head screws, it is crucial to follow the manufacturer's instructions and guidelines. This includes information on the recommended tightening torque and the use of any additional hardware, such as washers or nuts, to ensure a secure and safe installation.

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ISO 4017:2011 and ISO 4017:2022

Hexagon head bolts and screws are used in a variety of applications, and ISO 4014 and ISO 4017 are two standards that define their properties. While ISO 4014 specifies the characteristics of hexagon head bolts, ISO 4017 sets the standards for hexagon head screws.

ISO 4017:2011

This edition of the standard specified the characteristics of hexagon head screws with metric coarse pitch threads ranging from M1.6 up to and including M64. The standard covered two product grades: Grade A for threads M1.6 to M24 and nominal lengths up to 150 mm or 10d (whichever is shorter), and Grade B for threads over M24 or nominal lengths exceeding 150 mm or 10d (whichever is shorter).

ISO 4017:2022

The current edition of the standard, published in 2022, continues to specify the characteristics of hexagon head screws in steel and stainless steel. It covers metric coarse pitch threads from M1.6 to M64 and includes product grades A and B. This edition allows for the selection of property classes and stainless steel grades from ISO 898-1 or ISO 3506-1 if different specifications are required. Dimensional options are also available from ISO 888 or ISO 4753.

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ISO 4017 Bolt Length and Diameter

ISO 4014 and ISO 4017 refer to standards for hexagon head bolts and screws. The standards specify various dimensions and characteristics for these fasteners, including the bolt length and diameter.

ISO 4017:2011 specifies the characteristics of hexagon head screws with threads from M1.6 up to and including M64. The standard defines two product grades: Grade A for threads M1.6 to M24 and nominal lengths up to and including 10d or 150 mm (whichever is shorter), and Grade B for threads over M24 or nominal lengths over 10d or 150 mm (whichever is shorter).

The latest version of the standard is ISO 4017:2022, which provides basic dimensions for hexagon head screws. The dimensions are provided in millimetres and cover lengths up to and including 120 mm and 150 mm.

The dimensional standards per ISO 4017 include various parameters such as the width across the corner and flat, transition diameter, diameter of the washer face, depth of the washer face, bolt shank length, and full threading length. These dimensions are critical for ensuring proper fastening and compatibility with other components.

While specific values for bolt length and diameter are not explicitly mentioned, the ISO 4017 standard provides a framework for understanding and selecting the appropriate hexagon head bolts and screws based on their dimensions and characteristics. It is important to refer to the standard for detailed specifications and to consult with fastener specialists or manufacturers for specific requirements.

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ISO 4017 Bolt Materials

ISO 4017 hexagon head bolts are available in a variety of materials, including steel, stainless steel, and plastic. The specific material used will depend on the intended application and the required properties of the bolt.

Steel ISO 4017 bolts are commonly available in grades 5.6, 5.8, 8.8, 10.9, and 12.9. These grades denote the tensile strength of the steel, with higher numbers indicating higher strength. For example, grade 8.8 bolts have a minimum tensile strength of 800 MPa, while grade 10.9 bolts offer even higher strength. Steel ISO 4017 bolts are often used in applications where high strength and durability are required, such as construction, automotive, and railway industries.

Stainless steel ISO 4017 bolts are typically made from grades A2 or A4 stainless steel, which are known for their corrosion resistance. Grade A2, also known as ASTM-304 or 18/8 stainless steel, has a composition of 18% chromium and 8% nickel, providing excellent resistance to corrosion. Grade A4, or ASTM-316, offers even better corrosion resistance due to its higher molybdenum content and is often used in chloride environments. Stainless steel ISO 4017 bolts are commonly used in applications where corrosion resistance is a priority, such as marine or outdoor environments.

In addition to steel and stainless steel, ISO 4017 bolts can also be made from plastic, brass, or other non-ferrous materials. Plastic ISO 4017 bolts, for example, may be used in applications where weight or electrical insulation is a consideration. Brass ISO 4017 bolts may offer benefits in terms of corrosion resistance and electrical conductivity, depending on the specific alloy used.

The choice of bolt material will depend on the specific requirements of the application, including strength, corrosion resistance, temperature resistance, and cost. It is important to refer to the relevant product standards and specifications to ensure the selected bolt material is suitable for the intended use.

Frequently asked questions

The ISO 4014 hex head screws are made of steel, specifically medium carbon steel, medium carbon steel alloy, or low carbon boron steel.

The diameter size of the ISO 4014 hex head screws ranges from M12 to M36, and the length is 190 mm.

There are two types of ISO 4014 hex head screws: fully threaded and partially threaded.

The ISO 4014 hex head screws are used for bolting large and forged parts, particularly in the automotive industry.

The ISO 4014 hex head screws exhibit high tensile strength and good wear resistance. The yield strength is about 940 MPa, and the tensile strength is 1040 MPa.

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