DIN 7982 Countersunk Head Self Tapping Screw

When the Wanluo factory manufactures DIN 7982 Countersunk Head Self Tapping Screws, it retains the advantages of efficient integrated construction of self-tapping screws, eliminating the need for pre-drilling or pre-treating the threads. It can directly machine the threads on thin plates, plastics, wood, and composite materials, completing the locking and fixation. It balances construction efficiency, assembly accuracy, and appearance tidiness, making it a universal core fastener for lightweight and precise assembly.

All products in this series are manufactured using an integrated cold forming process, combined with precise thread finishing technology. The overall structure is dense and uniform, with precise and controllable dimensional tolerances. The standard taper angle is regular, and it can perfectly match the countersunk holes of conventional workpieces. The inner wall of the deep-formed cross groove is smooth and regular, suitable for various conventional disassembly and assembly tools. The high-speed assembly is not prone to slipping or cracking. It is made of high-quality stainless steel base material, processed through refined processes, with uniform hardness, wear resistance, and corrosion resistance. It can maintain stable fastening performance even under long-term vibration and regular use, suitable for various long-term outdoor and indoor lightweight fixation scenarios.

Product advantages

1. Embedded flat installation, without structural interference

2. Integrated self-drilling molding, efficient and convenient construction

3. Precise cross-slot fit, high stability for disassembly and assembly

4. Compatible with multiple materials, less likely to damage the workpiece

5. Stainless steel material, durable and suitable for various working conditions

Structural Features & Manufacturing Technology

DIN 7982 cross recess countersunk self-tapping screws adopt integrated cold forming and precise thread trimming technology. The standard 90° taper head features accurate angle tolerance, which perfectly matches conventional workpiece counterbore holes to realize seamless fitting installation. The classic cross recess is deeply formed with smooth inner wall, matching manual and electric screwdrivers tightly without slipping or groove collapse during high-speed assembly. The sharp gradient thread design has strong cutting and tapping ability, which can quickly drill and lock thin metal plates, plastic, wood and composite materials without workpiece cracking or deformation. Made of high-quality stainless steel raw materials, the whole screw body has uniform hardness, excellent wear resistance and corrosion resistance, maintaining stable fastening strength after long-term use and frequent vibration.

Product Parameter

Core Advantages & Industrial Applications

1. Full countersunk flush installation design completely eliminates protruding screw heads, avoiding friction, scratch and structural interference of moving parts, ensuring smooth and flat workpiece surface after assembly.

2. Integrated self-tapping function supports one-step direct fastening, no need for pre-drilling threaded holes, effectively simplifying assembly procedures, improving production efficiency and reducing overall processing costs.

3. Standard 90-degree tapered head fits various universal counterbore holes accurately, realizing seamless fitting assembly, not only improving assembly flatness but also enhancing overall product appearance and grade.

4. High-quality stainless steel material provides excellent weather resistance and salt spray corrosion resistance, adapting to indoor and outdoor light-load fastening scenarios, free from rust and loosening after long-term service.

5. Universal cross drive design is compatible with manual and electric assembly tools, with strong versatility, widely used in precision electronic casings, furniture panels, thin plate fixtures and aesthetic-oriented assembly scenes.

FAQ

Q1: What are the core differences between DIN 7982 Countersunk Head Self Tapping Screw and ordinary round-head self-tapping screws?

The core difference lies in the installation form and application scenarios. This product is designed with a countersunk embedded style, after installation, the surface is flat without protrusions, and there is no assembly interference. It is suitable for appearance components, movable structures, and precise fitting assembly; while the round-head screws are exposed and protruding, and are only suitable for regular basic fixation, and cannot be used in flat assembly scenarios.

Q2: Can this screw be directly used for punching holes and locking on stainless steel thin plates?

Yes, this product has excellent thread cutting performance and can directly be adapted to self-tapping locking on conventional stainless steel thin plates, iron sheets, aluminum plates, etc. There is no need for pre-treatment in advance. After assembly, it fits tightly and is not prone to loosening, and will not cause the plates to crack or deform.

Q3: Is the cross-slot prone to slipping and slotting problems?

No, the product adopts an integrated deep-formed cross-slot process. The slot wall is thick and regular, and the force is evenly distributed. Combined with standard tolerance design, it is suitable for regular electric and manual tools. Under normal and standard construction, there will be no slipping, slotting, or rounding problems, and it is suitable for batch and high-frequency assembly.

Q4: Is it suitable for long-term outdoor use, and will it rust or loosen?

The entire series of stainless steel materials have excellent rust-proof and corrosion-resistant properties. They can withstand outdoor humidity, sunlight, and mild acid-base environments. Long-term use is not prone to oxidation and rusting. At the same time, the thread bite is tight, and the anti-vibration capacity is strong. Under normal working conditions, there will be no loosening or detachment problems.

Q5: Which scenarios are not recommended to use this product?

This product is a lightweight and precise fastening screw, mainly for flat assembly and light fixation. It is not recommended for heavy load-bearing, high-pressure force-bearing, and high-frequency intense vibration core load-bearing structures. To avoid overload, which may cause thread slippage, breakage, and affect equipment safety.