ISO14583 Hexalobular Socket Pan Head Screws
ISO 14583 Hexalobular Socket Pan Head Screws are precision-engineered fasteners designed with a pan head and hexalobular internal drive according to ISO 14583 standards. The hexalobular socket (Torx) design provides better contact between the screw and driver, allowing higher torque transmission with reduced risk of cam-out and drive damage during installation. Compared with conventional cross recess or slotted screws, these screws offer more reliable tightening performance, improved assembly efficiency and longer service life. The pan head design provides a larger bearing surface while maintaining a relatively low head profile, making them suitable for applications where secure fastening and limited installation space are required.
Manufactured from high-quality stainless steel, alloy steel or other engineering materials, ISO 14583 Hexalobular Socket Pan Head Screws provide excellent mechanical performance, dimensional accuracy and consistent quality. Their compact head design, strong drive engagement and clean appearance make them widely used in precision equipment, electrical products, machinery, automotive components and industrial assemblies. Available in various diameters, lengths, strength classes and surface finishes, these hexalobular socket pan head screws can meet different fastening requirements and provide reliable solutions for both standard and customized applications.


Specification:
ISO 14583 Hexalobular Socket Pan Head Screws are manufactured according to ISO 14583 standards, which define the requirements for pan head screws with a hexalobular internal drive. The specification covers important technical details including screw dimensions, head dimensions, thread requirements, drive size, material grades, strength classes and surface finishes. The hexalobular socket design is precisely manufactured to ensure accurate tool engagement and reliable torque transmission during assembly.
ISO 14583 Hexalobular Socket Pan Head Screws are available in various materials and performance classes to meet different application requirements. Common materials include stainless steel grades such as A2 and A4, as well as alloy steel options with different strength classes. The following table provides the detailed specifications of ISO 14583 Hexalobular Socket Pan Head Screws, including standard, material, thread type, strength class and surface treatment options.
| Product name | ISO14583 Hexalobular Socket Pan Head Screws |
|---|---|
| Thread Diameter | M2-M10 |
| Head Type | Pan Head |
| Drive Type | Torx |
| Material | Stainless Steel/Alloy Steel |
| Strength | A2-70 A2-80 Class4.8 8.8,10.9,12.9 |
| Surface Treatment | Plain/Nylok Patch/Thread Locking/Zinc Plated/Black Oxidation |
Dimension Chart of ISO14583 Hexalobular Socket Pan Head Screws:
The following dimension chart provides the standard dimensions of Stainless Steel ISO 14583 Hexalobular Socket Pan Head Screws, including nominal diameter, thread size, head dimensions and available lengths. Customers can refer to the table below to select suitable screw sizes according to their application requirements.

| Mon | M2 | M2.5 | M3 | M3.5 | M4 | M5 | M6 | M8 | M10 |
| P | 0.4 | 0.45 | 0.5 | 0.6 | 0.7 | 0.8 | 1 | 1.25 | 1.5 |
| da max | 2.6 | 3.1 | 3.6 | 4.1 | 4.7 | 5.7 | 6.8 | 9.2 | 11.2 |
| dk max | 4 | 5 | 5.6 | 7 | 8 | 9.5 | 12 | 16 | 20 |
| dk min | 3.7 | 4.7 | 5.3 | 6.64 | 7.64 | 9.14 | 11.57 | 15.57 | 19.48 |
| k max | 1.6 | 2.1 | 2.4 | 2.6 | 3.1 | 3.7 | 4.6 | 6 | 7.5 |
| k min | 1.46 | 1.96 | 2.26 | 2.46 | 2.92 | 3.52 | 4.3 | 5.7 | 7.14 |
| r max | 0.1 | 0.1 | 0.1 | 0.1 | 0.2 | 0.2 | 0.25 | 0.4 | 0.4 |
| No. | T6 | T8 | T10 | T15 | T20 | T25 | T30 | T45 | T50 |
| e | 1.75 | 2.4 | 2.8 | 3.35 | 3.95 | 4.5 | 5.6 | 7.95 | 8.95 |
| t max | 0.77 | 1.04 | 1.27 | 1.33 | 1.66 | 1.91 | 2.42 | 3.18 | 4.02 |
| t min | 0.63 | 0.91 | 1.01 | 1.07 | 1.27 | 1.52 | 2.02 | 2.79 | 3.62 |
- RELATED SCREWS LISTS:
- ISO14585 Torx Pan Head Self Tapping Screws
- ISO14584 Torx Raised Countersunk Head Screws
- ISO14581 Stainless Steel Hexalobular Socket Countersunk Flat Head Screws
- ISO14579 Hexalobular Socket Head Cap Screws
- ISO1207 Slotted Cheese Head Screws
- ISO10642 Stainless Steel Socket Cap Countersunk Head Screws
- ISO14580 Hexalobular Socket Cheese Head Screws
Application of Stainless Steel ISO14583 Hexalobular Socket Pan Head Screws:
ISO 14583 hexalobular socket head cap screws are widely used in applications requiring high fastening reliability, precise assembly, and a clean appearance. The cylindrical head design provides a larger bearing surface, while the hexalobular (Torx) drive allows higher torque transmission, better tool engagement, and more efficient installation compared with traditional drive systems.
| Application | Details |
|---|---|
| Automotive Industry | ISO 14583 screws are commonly used for automotive components, engine parts, interior assemblies, electronic systems, and precision fastening applications. Stainless steel versions provide excellent corrosion resistance and long service life in demanding environments. |
| Machinery and Industrial Equipment | These screws are suitable for machine building, automation equipment, production lines, and mechanical assemblies where accurate positioning and reliable connections are required. |
| Electrical and Electronic Equipment | The compact head design and stable Torx drive make ISO 14583 screws ideal for electrical cabinets, control systems, electronic devices, and equipment requiring secure fastening with a neat appearance. |
| Precision Engineering and Instruments | Due to their accurate ISO standard dimensions and excellent torque control, these screws are widely used in precision instruments, measuring equipment, and high-accuracy mechanical products. |
| Furniture, Hardware and Decorative Applications | ISO 14583 hexalobular socket head cap screws are used in high-quality furniture, stainless steel hardware, and decorative structures where both fastening strength and appearance are important. |
