Vimal Industrial Corporation is a trusted stockist and supplier of DIN 7971 self-tapping screws in Mumbai, India, catering to industrial and engineering requirements across the country. Manufactured as per DIN 7971 standards, these screws feature a slotted pan head design along with a thread-forming geometry that allows direct fastening into thin sheet metal, plastics, and light alloys without the need for pre-tapped holes. The pan head ensures a stable seating with a neat surface finish, offering both functional strength and clean assembly appearance.
These self-tapping screws are widely preferred in applications where quick installation, reliable grip, and consistent performance are required. Their design helps reduce assembly time while maintaining strong holding capability in different substrates, making them suitable for both light-duty and industrial fastening needs.
Vimal Industrial Corporation maintains a comprehensive range of DIN 7971 screws in various sizes, material grades, and surface finishes to meet diverse application demands. We support OEMs, electrical panel manufacturers, fabricators, contractors, and MRO teams by ensuring ready availability of quality fasteners backed by consistent supply and industrial reliability.
Vimal Industrial Corporation is a reliable supplier of DIN 7971 self-tapping screws in Mumbai, India, serving electrical, fabrication, and consumer goods industries across the country. These screws continue to be widely used in sheet metal applications where simple installation and dependable fastening are required. We work closely with established manufacturers, including APL Fasteners, to ensure consistent availability of DIN-standard compliant products.
Our inventory is maintained to support both routine and urgent industrial requirements, with a strong focus on quality and supply stability. Each batch is handled with proper storage practices to maintain material integrity and performance over time. This helps ensure that the fasteners delivered are ready for immediate industrial use without quality concerns.
We also provide complete traceability and quality assurance support wherever required, including mill test documentation and inspection reports for critical applications. Our Mumbai-based distribution setup is structured to handle fast-moving requirements efficiently, supported by a nationwide logistics network. Whether it is emergency maintenance work, EPC project execution, or regular OEM production supply, Vimal Industrial Corporation ensures timely availability and smooth delivery of DIN 7971 screws with dependable service support.
DIN 7971 self-tapping screws are preferred in industries where ease of installation and consistent performance are important. Their ability to cut threads directly into the material reduces assembly time and improves efficiency in production environments. Because of their reliable grip and practical design, they are commonly selected for both new installations and maintenance work.
These screws are especially useful in applications involving sheet metal and lightweight assemblies where a balance of strength and clean finishing is required. Their compatibility with standard tools also makes them a convenient choice for on-site repairs and workshop operations.
Electrical Panels & Switchgear – sheet-metal covers, mounting plates, and control boxes.
Consumer Appliances – housings, enclosures, and casing assemblies.
HVAC & Ventilation Systems – duct panels and brackets requiring flush fastening.
Automotive & Transport Interiors – dashboard panels, trim, and fixtures.
Sheet-Metal Fabrication – cabinets, kiosks, and general enclosures.
General Engineering & MRO – workshop repairs and retrofit jobs using slotted drive tools.
With strong industry presence and years of experience in industrial fasteners, Vimal Industrial Corporation is a dependable supplier of DIN 7971 self-tapping screws in India. We are trusted by OEMs, fabrication units, and maintenance teams for consistent availability and reliable supply support.
Why clients choose us:
✅ Authorized APL Fasteners Dealer – genuine sourcing with verified quality standards We work only with trusted manufacturers to ensure product authenticity and industrial-grade performance.
✅ Ready Inventory – wide range of sizes, lengths, and surface finishes always available Our stock readiness helps customers avoid delays in production and project execution.
✅ Flexible Packing Options – bulk cartons, customized kits, and export-grade packaging Designed to support different requirements from local supply to international shipments.
✅ Application-Based Guidance – support in selecting correct screw for specific use, We help customers choose based on sheet thickness, load conditions, and installation environment for better performance.
✅ Strong Distribution Network – efficient dispatch from Mumbai across India, Ensures timely delivery for urgent as well as scheduled industrial requirements.
✅ Quality Control – inspected batches with proper documentation support Each supply is checked for consistency and backed with required certificates when needed.
✅ Reliable Support System – quick response and smooth coordination for orders Helps industrial buyers manage procurement without delays or confusion.
Vimal Industrial Corporation focuses on making procurement of DIN 7971 screws simple, reliable, and consistent so industries can maintain uninterrupted operations and efficient workflow.
| Thread | ST 2,2 | ST 2,9 | ST 3,5 | ST 4,2 | ST 4,8 | ST 5,5 | ST 6,3 | ST 8 | ST 9,5 |
|---|---|---|---|---|---|---|---|---|---|
| P | 0,8 | 1,1 | 1,3 | 1,4 | 1,6 | 1,8 | 1,8 | 2,1 | 2,1 |
| a max. | 0,8 | 1,1 | 1,3 | 1,4 | 1,6 | 1,8 | 1,8 | 2,1 | 2,1 |
| da max. | 2,8 | 3,5 | 4,1 | 4,9 | 5,5 | 6,3 | 7,1 | 9,2 | 10,7 |
| dk | max. 4 | 5,6 | 7 | 8 | 9,5 | 11 | 12 | 16 | 20 |
| min. 3,7 | 5,3 | 6,6 | 7,6 | 9,1 | 10,6 | 11,6 | 15,6 | 19,5 | |
| k | max. 1,3 | 1,8 | 2,1 | 2,4 | 3 | 3,2 | 3,6 | 4,8 | 6 |
| min. 1,1 | 1,6 | 1,9 | 2,2 | 2,7 | 2,9 | 3,3 | 4,5 | 5,7 | |
| n | nom. 0,5 | 0,8 | 1 | 1,2 | 1,2 | 1,6 | 1,6 | 2 | 2,5 |
| max. 0,7 | 1 | 1,2 | 1,51 | 1,51 | 1,91 | 1,91 | 2,31 | 2,81 | |
| min. 0,56 | 0,86 | 1,06 | 1,26 | 1,26 | 1,66 | 1,66 | 2,06 | 2,56 | |
| r min. | 0,1 | 0,1 | 0,1 | 0,2 | 0,2 | 0,25 | 0,25 | 0,4 | 0,4 |
| rf approx. | 0,6 | 0,8 | 1 | 1,2 | 1,5 | 1,6 | 1,8 | 2,4 | 3 |
| t min. | 0,5 | 0,7 | 0,8 | 1 | 1,2 | 1,3 | 1,4 | 1,9 | 2,4 |
| w min. | 0,5 | 0,7 | 0,8 | 0,9 | 1,2 | 1,3 | 1,4 | 1,9 | 2,4 |
| y | Type C 2 | 2,6 | 3,2 | 3,7 | 4,3 | 5 | 6 | 7,5 | 8 |
| Type F 1,6 | 2,1 | 2,5 | 2,8 | 3,2 | 3,6 | 3,6 | 4,2 | 4,2 |
| L Nominal |
Type C | Type F | Trade sizes | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min. | max. | min. | max. | |||||||||||
| 4,5 | 3,7 | 5,3 | 3,7 | 4,5 | + | |||||||||
| 6,5 | 5,7 | 7,3 | 5,7 | 6,5 | + | + | + | |||||||
| 9,5 | 8,7 | 10,3 | 8,7 | 9,5 | + | + | + | + | + | |||||
| 13 | 12,2 | 13,8 | 12,2 | 13 | + | + | + | + | + | + | + | |||
| 16 | 15,2 | 16,8 | 15,2 | 16 | + | + | + | + | + | + | + | + | + | |
| 19 | 18,2 | 19,8 | 18,2 | 19 | + | + | + | + | + | + | + | + | + | |
| 22 | 21,2 | 22,8 | 20,7 | 22 | + | + | + | + | + | + | + | |||
| 25 | 24,2 | 25,8 | 23,7 | 25 | + | + | + | + | + | + | + | |||
| 32 | 30,7 | 33,3 | 30,7 | 32 | + | + | + | + | + | + | ||||
| 38 | 36,7 | 39,3 | 36,7 | 38 | + | + | + | |||||||
| 45 | 43,7 | 46,3 | 43,5 | 45 | + | + | ||||||||
| 50 | 48,7 | 51,3 | 48,5 | 50 | + | |||||||||
DIN 7971 self-tapping screws are slotted pan head fasteners designed to cut their own mating threads in sheet metals, plastics, and light alloys. Their countersunk head ensures a flush finish, making them suitable for applications where both performance and clean aesthetics are important.
DIN 7971 screws are produced in thread diameters from 2.2 mm to 9.5 mm and nominal lengths ranging from 4.5 mm up to 50 mm. The standard specifies tolerances for head geometry, thread depth, and countersunk angles, ensuring compatibility across global manufacturing and maintenance industries.
DIN 7971 screws are typically manufactured from case-hardened carbon steel for standard use and stainless steel (A2, A4 grades) for enhanced corrosion resistance. Popular finishes include zinc plating, nickel coating, black oxide, and plain/oiled, depending on environmental exposure and torque requirements.
These screws are widely used in electrical panels, consumer appliances, HVAC systems, automotive interiors, and sheet-metal fabrication. Their slotted drive design makes them compatible with traditional tools, making them a practical choice for both OEM assembly lines and MRO (maintenance, repair, and overhaul) operations.
As an authorized APL Fasteners dealer and leading stockist in Mumbai, Vimal Industrial Corporation offers a complete range of DIN 7971 screws with same-day dispatch. Customers benefit from climate-controlled storage, mill test certificates, lot traceability, third-party inspections, and pan-India delivery, ensuring fast, reliable, and documented supply for every project.
