DIN7505 A Countersunk Pozi Drive Chipboard Screws
DIN 7505 A Countersunk Chipboard Screws are designed with a countersunk head and cross recess drive for direct fastening into chipboard and other wood-based boards. The countersunk head allows the screw to sit flush with the material surface, creating a cleaner finished joint while providing sufficient seating area for the applied clamping force.
The screw features a sharp point and specialized thread geometry that allows it to penetrate and form a secure thread in the board material during installation. For case-hardened carbon steel versions, the hardened surface improves resistance to wear and thread damage during driving, while the tougher core helps the screw withstand installation loads. The DIN 7505 A design combines the fastening thread, countersunk head, and recessed drive in a single screw, making it suitable where direct installation and a flush finished surface are required.
Specification:
DIN 7505 A screws are characterized by their countersunk head, cross recess drive, sharp point, and thread geometry for wood-based materials. Product specifications can vary according to material, heat treatment, surface finish, and drive configuration. For heat-treated carbon steel versions, mechanical properties can be specified with reference to ISO 2702, while the cross recess can be manufactured according to ISO 4757 where applicable. Surface hardness requirements should be stated according to the actual product specification rather than presented as a universal requirement of DIN 7505.
| Item | Specification |
|---|---|
| Standard | DIN7505 A |
| Product Type | Countersunk Chipboard Screw |
| Head Style | Countersunk Head |
| Drive Type | Pozi Drive/Cross Recess |
| Thread Type | Chipboard/Wodd Forming Thread |
| Thread Diameter: | ST2.5-ST6 |
| Material | Carbon Steel, Stainless Steel |
| Point | Sharp Point |
| Surface Hardness | ≥450HV |
| Core Hardness | 270-370HV |
| Surface Treatment | Zinc plated,Black Oxidation,Passivation, Bright Finish |
| Mechanical Property | ISO2702 |
Dimension Chart of DIN7505 A Countersunk Pozi Drive Chipboard Screws:
Our dimension chart covers various standard sizes and specifications, providing an easy reference for applications in furniture manufacturing, woodworking, interior decoration, and general construction. Customized dimensions, materials, and surface treatments are also available to meet specific customer requirements.
| Mon | 2.5 | 3 | 3.5 | 4 | 4.5 | 5 | 6 |
| P | -- | -- | -- | -- | -- | -- | -- |
| d max | 2.5 | 3 | 3.5 | 4 | 4.5 | 5 | 6 |
| d min | 2.25 | 2.75 | 3.2 | 3.7 | 4.2 | 4.7 | 5.7 |
| d1 max | 1.5 | 1.9 | 2.15 | 2.5 | 2.7 | 3 | 3.7 |
| d1 min | 1.1 | 1.5 | 1.67 | 2.02 | 2.22 | 2.52 | 3.22 |
| dk max | 5 | 6 | 7 | 8 | 9 | 10 | 12 |
| dk min | 4.7 | 5.7 | 6.64 | 7.64 | 8.64 | 9.64 | 11.57 |
| k | 1.4 | 1.8 | 2 | 2.35 | 2.55 | 2.85 | 3.35 |
| a max | 2.1 | 2.35 | 2.6 | 2.8 | 3 | 3.2 | 3.6 |
| No. | 1 | 1 | 2 | 2 | 2 | 2 | 3 |
| M | 2.51 | 3 | 4 | 4.4 | 4.8 | 5.3 | 6.6 |
| t min | 1.22 | 1.6 | 1.76 | 2.05 | 2.46 | 2.99 | 2.99 |
| t max | 1.47 | 2.01 | 2.06 | 2.51 | 2.92 | 3.45 | 3.45 |
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Application of DIN7505 A Countersunk Pozi Drive Chipboard Screws:
DIN 7505 A Countersunk Chipboard Screws are intended for direct fastening into chipboard, particle board, MDF, and other wood-based panels. The countersunk head provides a flush finish, while the thread geometry is designed to develop reliable holding in board materials without requiring a pre-tapped metal thread.
Furniture and Cabinet Assembly
DIN 7505 A screws are widely used for cabinets, furniture panels, shelves, drawers, and other wood-based components where the screw head needs to sit flush with the surface. The recessed drive also allows efficient installation during production assembly.
Wood-Based Panel Construction
They are suitable for joining chipboard, particle board, MDF, plywood, and similar engineered wood products. The screw forms its engagement directly in the board material, making it practical for panel-to-panel and component-to-panel fastening.
Interior Fittings and Fixtures
These screws can be used for interior fittings, display units, partitions, storage systems, and fabricated wood components, particularly where a clean surface appearance is required after installation.