Customized Hexagon Socket Head Screws: Versatile, Secure Fastening Solutions

Hexagon socket head screws are available in a range of sizes, from M3 to M16, and can be customized to suit specific requirements. These screws are commonly used in woodworking, machinery, and robotics applications. They are made from various materials, including alloy steel, zinc-plated steel, and stainless steel, and can be purchased in different finishes, such as zinc, black, and clear. The dimensions of hexagon socket head screws are important, encompassing screw length, thread pitch, and head size, and conforming to standards like DIN and ISO.

Hexagon socket head screw dimensions

The dimensions of hexagon socket head screws vary depending on the specific type and standard being followed. Here are some details on the dimensions of these screws:

ISO and DIN Standards

According to ISO and DIN standards, hexagon socket head screws typically range in size from M3 to M16. The "M" designates a metric screw, and the number represents the nominal diameter of the screw in millimetres. For example, an M3 screw has a nominal diameter of 3 millimetres.

Screw Length and Thread Pitch

The length of hexagon socket head screws can vary, and it is measured from the tip of the screw to the underside of the hex cap. Common lengths include 6mm, 8mm, 10mm, 16mm, 20mm, 25mm, and 35mm. The thread pitch, which is the distance between each thread, is also important. For example, an M3 screw typically has a thread pitch of 0.5mm.

Head Dimensions

The head of a hexagon socket head screw has specific dimensions as well. For an M3 screw, the hex width is typically 5.5mm, and the height is 2mm. These dimensions may vary slightly depending on the manufacturer and the specific type of screw.

ANSI/ASME Standards

According to ANSI/ASME standards, hexagon socket head cap screws are available in sizes ranging from M3 to M36. The positioning of the drilled holes in the head can vary, with smaller screws having two holes spaced 180 degrees apart, and larger screws having six holes spaced 60 degrees apart.

Socket Size

The size of the hexagonal recess, or socket, in the head of the screw is an important dimension as well. The socket size will determine the size of the tool needed to drive the screw. The socket size is typically specified in the screw's dimensions or standards.

Other Dimensions

Other dimensions that may be specified for hexagon socket head screws include the chamfer or radius at the top and bottom of the screw head, the diameter of the bearing surface, and the length of the threaded portion of the screw. These dimensions can vary depending on the specific type and standard of the screw.

Zinc-plated steel

One example of zinc-plated steel screws is the M3 Hex Cap Screws offered by REV Robotics. These screws are designed to be compatible with the REV DUO System and feature a corrosion-resistant zinc-plated steel construction. The head dimensions of these screws include a 5.5mm hex width and a 2mm height, with lengths varying based on the specific product selected.

Another example is the M3-0.5 x 6 mm Zinc-Plated Plain Metric Socket Cap Screw offered by Everbilt and available at Home Depot. These screws come in a package of three and feature a plain finish. The zinc plating provides a bright, clean appearance while also enhancing the screw's resistance to corrosion.

Additionally, zinc-plated fasteners are available in various grades and sizes from Hobson Engineering, as listed on the Bunnings Australia website. These fasteners include bolts, nuts, washers, and assorted kits, providing a comprehensive range of options for different applications. The zinc plating on these fasteners ensures their durability and resistance to corrosion, making them suitable for a wide range of projects.

DIN 912 German Industrial Norm

DIN 912 is the German Industrial Norm for metric screw threads with a coarse pitch. It is a standard specification for hexagon socket head cap screws, which are commonly made from alloy steel or high tensile materials. The DIN 912 standard covers dimensions, tolerances, materials, and applications for these screws.

The dimensions of a DIN 912 screw are defined by various parameters, including:

• D - the nominal diameter of the thread
• K - head height
• T - groove depth
• Dk - head diameter
• L - length of the bolt
• S - size of the internal hexagon

The specific values of these parameters can vary depending on the requirements and applications. For example, the diameter (d) can range from M2 to M48, and the length (L) can vary from 6mm to 280mm.

DIN 912 screws are available in different materials, including steel, stainless steel, and plastic. The steel grade for these screws can be 8.8, 10.9, or 12.9, while the stainless steel grades can be A2 or A4. It is important to note that electroplating these products may cause hydrogen embrittlement.

DIN 912 screws are commonly used in a variety of applications, including engineering, construction, and manufacturing. They provide strong and secure fastening solutions for a wide range of projects. These screws can be customized to meet specific requirements, such as the M3-M16 customization range.

Customization options

There are several customization options available for hexagon socket head screws. The following paragraphs will discuss the different ways in which these screws can be customized to meet specific requirements or applications.

One of the most common customization options is the choice of material. Hexagon socket head screws are typically made of steel, but different types of steel and other materials can be used depending on the specific needs of the application. For example, corrosion-resistant zinc-plated steel is often used in applications where protection against rust is important. Other materials that may be used include alloy steel, stainless steel, and black grade 12.9 steel.

Another important customization option is the size of the screw. Hexagon socket head screws are designated by their metric size, such as M3, M4, M5, and so on. The size of the screw will depend on the specific application and the dimensions of the components being fastened. For example, the M3 size is typically used for smaller projects or applications, while larger sizes such as M16 may be more suitable for heavy-duty applications.

In addition to the overall size of the screw, the length and thread pitch can also be customized. Lengths can vary depending on the specific application, and screws are typically available in a range of standard lengths. For example, M3 hexagon socket head screws may be available in lengths of 6mm, 8mm, 10mm, 16mm, 20mm, 25mm, and 35mm. The thread pitch, which is the distance between each thread on the screw, is another important specification that can be customized. For M3 screws, the standard thread pitch is 0.5mm.

The head style and dimensions of the hexagon socket head screw can also be customized. The head style refers to the shape and design of the head of the screw. Common head styles include button head, countersunk head, and cap head. The dimensions of the head, such as the hex width and height, can also be customized to fit the specific application.

Finally, the finish of the hexagon socket head screw can be customized to achieve specific functional or aesthetic requirements. Common finishes include zinc, black, clear, yellow, and nickel, each of which may have specific properties or benefits. For example, zinc-plated screws may offer improved corrosion resistance, while black-finished screws may be used for decorative purposes or to blend in with dark-coloured materials.

Hex cap screw compatibility

Hex cap screws are six-sided bolts with trimmed hex heads and washer faces on the bearing surface. They are commonly used in applications where precise tolerances are required, such as in OEM applications. The compatibility of a hex cap screw depends on various factors, including the specific tolerances, materials, and grades.

Tolerances:

Hex cap screws must meet specific tolerances outlined in standards such as ASME B18.2.1-1996. These tolerances ensure that the screws fit properly and can withstand the required loads and stresses.

Materials:

The compatibility of a hex cap screw also depends on the material it is made of. The most common materials for hex cap screws are steel and stainless steel. However, there are also other materials available, such as brass and silicon bronze. The choice of material depends on the specific application and the required corrosion resistance, strength, and temperature range.

Grades:

Hex cap screws are classified into different grades, such as Grade-2, Grade-5, and Grade-8 for SAE, or property classes for metric screws. The grade indicates the strength and application of the screw. For example, Grade-2 screws are made from low or medium carbon steel and are suitable for non-critical applications, while Grade-8 screws are designed for high-stress applications and have higher tensile strength.

Specifications:

When selecting a hex cap screw, it is important to consider the specific specifications, such as the diameter, length, and thread type. AFT Fasteners, a wholesale supplier, offers over 20,000 different sizes and styles of hex cap screws, including various lengths and finishes. They also offer screws that are partially or fully threaded.

In summary, the compatibility of a hex cap screw depends on factors such as the required tolerances, materials, grades, and specific dimensions and specifications. It is important to choose the appropriate screw for the specific application to ensure proper fit and performance.

Frequently asked questions