DIN7500 EE Thread Forming Screws
DIN 7500 EE Thread Forming Screws form a mating internal thread directly in a pre-drilled hole as the screw is installed. Instead of cutting away material to create the thread, the forming thread displaces and reshapes the material around the hole, allowing the screw to create its own mating thread while minimizing chips and loose cutting debris.
The EE design features a cylindrical head with a hexagon socket, providing recessed drive access where a compact installation area is required. The thread-forming action can produce a firm metal-to-metal threaded connection while eliminating the need for a separate tapping operation in many applications. DIN 7500 EE Thread Forming Screws are commonly used for sheet metal assemblies, machine components, electrical equipment, automotive parts, and fabricated metal products where efficient installation and a clean threaded connection are important.
Specification:
DIN 7500 EE Thread Forming Screws are specified by their thread size, screw length, head dimensions, hexagon socket size, and thread-forming geometry. The EE configuration combines a cylindrical head with an internal hexagon socket, allowing the screw to be installed in areas where a recessed drive is preferred. Unlike cutting-type screws, the thread-forming profile displaces the material around the prepared hole to create the mating thread. The pre-drilled hole diameter should therefore be selected according to the screw size, base material, and required thread-forming performance.
| Item | Specification |
|---|---|
| Standard | DIN7500 |
| Form | EE |
| Product Type | Thread Forming Screw |
| Head Stype | Cylindrical/Socket Head |
| Drive | Hexagon Socket |
| Thread Type | Thread Forming |
| Thread Diameter | M2-M12 |
| Material | Carbon Steel,Stainless Steel |
| Surface Treatment | Zinc Plated,Bright Finish |
| Installation | Pre-drilled Hole |
Dimension Chart of DIN 7500 EE Thread Forming Screws:
The DIN 7500 EE dimension chart covers metric thread sizes from M2 to M12 and provides the key dimensions required for selecting the correct thread-forming screw. In addition to the nominal thread diameter and screw length, the chart includes the cylindrical head dimensions and hexagon socket size of the EE design. The pilot hole diameter is particularly important for DIN 7500 thread-forming screws. Unlike a conventional machine screw, the screw forms the mating thread during installation, so the hole size should be selected according to the screw size, base material, material thickness, and required thread-forming performance.
| Mon | M2 | M2.5 | M3 | M4 | M5 | M6 | M8 | M10 | M12 |
| P | 0.4 | 0.45 | 0.5 | 0.7 | 0.8 | 1 | 1.25 | 1.5 | 1.75 |
| dk max | 3.8 | 4.5 | 5.5 | 7 | 8.5 | 10 | 13 | 16 | 18 |
| dk min | 3.62 | 4.32 | 5.32 | 6.78 | 8.28 | 9.78 | 12.73 | 15.73 | 17.73 |
| da max | 2.6 | 3.1 | 3.6 | 4.7 | 5.7 | 6.8 | 9.2 | 11.2 | 13.7 |
| e min | 1.733 | 2.303 | 2.873 | 3.443 | 4.583 | 5.723 | 6.863 | 9.149 | 11.429 |
| k max | 2 | 2.5 | 3 | 4 | 5 | 6 | 8 | 10 | 12 |
| k min | 1.86 | 2.36 | 2.86 | 3.82 | 4.82 | 5.7 | 7.64 | 9.64 | 11.57 |
| r min | 0.1 | 0.1 | 0.1 | 0.2 | 0.2 | 0.25 | 0.4 | 0.4 | 0.6 |
| s max | 1.58 | 2.08 | 2.58 | 3.08 | 4.095 | 5.14 | 6.14 | 8.175 | 10.175 |
| s min | 1.52 | 2.02 | 2.52 | 3.02 | 4.02 | 5.02 | 6.02 | 8.025 | 10.025 |
| t min | 1 | 1.1 | 1.3 | 2 | 2.5 | 3 | 4 | 5 | 6 |
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Application of DIN 7500 EE Thread Forming Screws:
DIN 7500 EE Thread Forming Screws are particularly useful when a manufacturer needs to create an internal thread directly during screw installation without a separate tapping operation. The forming process displaces material around the pilot hole rather than cutting it away, helping minimize loose chips in the assembly.
Sheet Metal and Metal Assemblies
They are widely suited to sheet-metal components, metal housings, brackets, panels, covers, and fabricated assemblies where threaded holes need to be produced efficiently during assembly.
Machinery and Equipment
DIN 7500 EE screws can be used in machine components, industrial equipment, electrical enclosures, control cabinets, and mechanical assemblies where a compact hexagon socket drive and formed internal thread are advantageous.
Automotive and Electrical Components
The screws are also suitable for automotive components, electrical equipment, electronic housings, and other mass-produced metal assemblies where reducing assembly steps and avoiding tapping chips can improve production efficiency.
Why Use DIN 7500 EE?
DIN 7500 EE can reduce the need for a separate tapping operation by forming the mating thread during installation. This can simplify production and help keep chips generated by conventional thread cutting out of the assembly.