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ISO10642 Socket Cap Countersunk Head Screws

ISO 10642 Socket Cap Countersunk Head Screws are precision fastening components featuring a countersunk flat head design and internal hexagon socket drive. Manufactured according to ISO 10642 specifications, these screws allow the head to sit flush with or below the surface of the assembled material, providing a smooth appearance and preventing interference in applications where space and surface finish are important.

With their angled countersunk head and hex socket drive, ISO 10642 screws provide reliable clamping performance and easy installation using standard hex keys. They are available in stainless steel, alloy steel and other materials with different strength grades and surface finishes, making them suitable for applications requiring secure fastening, clean appearance and accurate assembly.

ANSI ASME B18.3 Stainless Steel Hexagon Socket Button Head Cap Screws
ISO10642 SS304 Hexagon Socket Countersunk Head Screws

Specification:

ISO 10642 Socket Cap Countersunk Head Screws are specified by their dimensional requirements, thread characteristics, mechanical properties and material options according to ISO standards. These screws feature a countersunk head design with an internal hex socket drive, allowing the head to sit flush with the installation surface while providing reliable torque transmission during assembly.

The specification of ISO 10642 screws covers important parameters including thread diameter, pitch, length, head dimensions, socket size and tolerance requirements. They are commonly produced with metric coarse threads and can be supplied in different materials and strength classes, such as stainless steel A2-70, A4-80 and alloy steel grades, depending on application requirements. Various surface finishes are available to improve corrosion resistance and meet different operating environments.

Product nameISO10642 Stainless Steel Socket Cap Countersunk Head Screws
Product TypeSocket Cap Countersunk Head Screws
Drive TypeHex Socket(Allen Drive)
Thread TypeMetric Thread
Thread DiameterM2-M20
Thread Tolerance6g
MaterialStainless Steel/Carbon Steel/Alloy Steel
Surface TreatmentPlain/Bright Pickling/Zinc Plated/Black Oxidation
Standard ReferenceISO10642

Dimension Chart:

The dimension chart of ISO 10642 Socket Cap Countersunk Head Screws provides the key measurements required for proper selection and assembly, including thread diameter, screw length, head diameter, head height, countersink angle and hex socket dimensions. These standardized dimensions ensure accurate installation and compatibility with designed threaded holes or matching components.

The following table shows common dimensions of ISO 10642 screws according to ISO requirements. By selecting the correct diameter, length and socket size, engineers can achieve a flush surface finish while maintaining reliable clamping performance in compact assembly designs.

Drawing of ISO10642 Screw

MonM3M4M5M6M8M10M12M14M16M20
P0.50.70.811.251.51.75222.5
dk max6.728.9611.213.4417.9222.426.8830.833.640.32
dk min5.547.539.4311.3415.2419.2223.1226.5229.0136.05
e min2.3032.8733.4434.5835.7236.8639.14911.42911.42913.716
k max1.862.483.13.724.966.27.448.48.810.16
s max2.082.583.084.0955.146.148.17510.17510.17512.212
s min2.022.523.024.025.026.028.02510.02510.02512.032
t min1.11.51.92.233.64.34.54.85.6

Application:

ISO 10642 Socket Cap Countersunk Head Screws are selected when a flush or low-profile fastening solution is required. The countersunk head design allows the screw head to sit level with or below the material surface, making them suitable for applications where appearance, clearance and surface smoothness are important. In precision equipment and mechanical assemblies, these screws are commonly used where reliable clamping force and space-saving installation are required. Stainless steel versions are often selected for applications requiring corrosion resistance, such as industrial equipment, automation systems, electronic devices and outdoor assemblies. Alloy steel versions with higher strength grades are suitable for applications requiring greater mechanical performance.

Typical applications include machinery manufacturing, automation equipment, precision instruments, electronic products, tooling systems and industrial assemblies. The combination of a countersunk head design and internal hex drive makes ISO 10642 screws a practical choice for applications requiring clean appearance, secure fastening and efficient installation.

Manufacturing Process:

The manufacturing process of ISO 10642 Socket Cap Countersunk Head Screws involves multiple precision-controlled steps to achieve accurate dimensions, proper head geometry and reliable thread performance. Production begins with raw material inspection, where materials such as stainless steel, alloy steel or carbon steel are checked to ensure they meet the required chemical composition and mechanical requirements.

For standard production, wire materials are processed through cold heading to form the basic screw shape, including the screw body and countersunk head. The 90° countersunk head is then precisely formed to ensure a smooth flush installation surface. The internal hex socket is produced by socket forming or machining processes to achieve accurate drive dimensions and reliable torque transmission during installation.

After head forming, threads are produced through thread rolling or thread cutting according to size, material and production requirements. Thread rolling provides improved thread strength and surface quality, while thread cutting can be used for specific sizes or special requirements. For alloy steel ISO 10642 screws, heat treatment processes such as quenching and tempering can be applied to achieve the required strength grades. Stainless steel versions may undergo cleaning and passivation processes to improve corrosion resistance.

The final production stages include surface treatment, dimensional inspection and quality verification. Available finishes include plain finish, passivation, zinc plating, black oxide and other protective coatings according to application requirements. Through controlled manufacturing processes, ISO 10642 Socket Cap Countersunk Head Screws can be supplied in various sizes, materials, strength classes and finishes to meet different industrial fastening requirements.