Vimal Industrial Corporation is a trusted screw supplier in Mumbai and a reliable name among stainless steel fasteners suppliers in India, offering a wide range of DIN 7972 self-tapping screws for industrial applications. These screws are manufactured as per DIN 7972 standards and feature a slotted countersunk head combined with a thread-forming design, allowing direct installation into thin sheet metal, plastics, and light alloys without the need for pre-tapping.
The countersunk head design ensures a flush finish after installation while also providing a stable bearing surface. This makes DIN 7972 screws suitable for applications where secure fastening and resistance to head pull-through are important. Their design supports consistent performance in assemblies that require both strength and clean finishing.
We maintain a ready stock of DIN 7972 self-tapping screws in multiple sizes, material grades, and surface finishes to meet varied industry requirements. Our supply supports OEMs, electrical panel manufacturers, fabricators, EPC contractors, and MRO teams looking for dependable fastening solutions. With a focus on quality, availability, and smooth supply, Vimal Industrial Corporation ensures reliable delivery along with proper technical support and documentation for industrial use.
With increasing demand across electrical, appliance, and fabrication sectors, DIN 7972 self-tapping screws continue to be widely used for applications requiring simple installation and reliable fastening. Vimal Industrial Corporation is a trusted screw supplier in Mumbai and works closely with leading manufacturers like APL Fasteners to ensure a steady supply of fasteners that meet DIN dimensional standards. As one of the dependable stainless steel fasteners suppliers in India, we focus on delivering consistent quality suitable for industrial use.
All screws are stored in controlled warehouse conditions to maintain product quality and prevent damage or corrosion during storage. Each batch is checked for dimensional accuracy and supplied with proper documentation, including mill test certificates, lot traceability, and inspection reports when required. This ensures reliability and transparency for clients working on critical projects.
With a well-connected Mumbai-based facility and an efficient distribution network across India, we support both urgent and planned requirements. From same-day dispatch for immediate needs to scheduled bulk supply, Vimal Industrial Corporation ensures smooth and timely delivery, making us a preferred choice for businesses looking for a reliable screw supplier in Mumbai.
DIN 7972 self-tapping screws are widely used across industries where flush fitting, secure fastening, and easy installation are required. Their countersunk head and slotted drive design make them suitable for applications involving sheet metal, light assemblies, and precision components:
Electrical & Control Panels – Used for fastening panel covers, brackets, and internal fittings where tight hold and clean finishing are essential in electrical setups.
Consumer Appliances – Ideal for appliance housings, outer frames, and enclosures that require both structural support and a smooth surface finish.
HVAC & Ventilation Systems – Commonly applied in sheet metal ducts, ventilation units, and mounting structures where consistent fastening is needed.
Automotive & Transport Interiors – Suitable for fixing panels, trims, and interior components where durability and alignment are important.
Sheet Metal Fabrication – Widely used in fabrication of cabinets, kiosks, control boxes, and enclosures requiring accurate and long-lasting assembly.
General Engineering & MRO – Preferred for maintenance, repair, and retrofit work due to easy installation with standard tools and reliable performance in repeated use.
With strong industry experience in fasteners supply, Vimal Industrial Corporation is a dependable source for DIN 7972 self-tapping screws in Mumbai and across India. We are known for consistent quality supply, technical understanding, and reliable delivery timelines.
Why clients prefer us:
✅ Authorized APL Fasteners Dealer – assured genuine products with full traceability Direct sourcing ensures material authenticity and industrial-grade reliability.
✅ Extensive Inventory – multiple sizes, lengths, and finishes readily available Supports both urgent project needs and long-term bulk requirements.
✅ Custom & Bulk Packing – cartons, kit assortments, or export-ready pallets
✅ Technical Support – guidance on torque, head selection, and substrate suitability
✅ Pan-India Logistics – same-day supply to metro hubs, EPC contractors, and OEMs
✅ Quality Compliance – supplied with ISO reports, inspection certificates, and lot traceability
✅ Customer-First Service – quick response, export facilitation, and dedicated account managers
For OEMs, EPC contractors, and manufacturing units, we make procurement of DIN 7972 screws structured, reliable, and hassle-free.
| Thread size | ST2,2 | ST2,9 | ST3,5 | (ST3,9) | ST4,2 | ST4,8 | ST5,5 | ST6,3 | |
|---|---|---|---|---|---|---|---|---|---|
| P | 0,8 | 1,1 | 1,3 | 1,3 | 1,4 | 1,6 | 1,8 | 1,8 | |
| a | max. | 0,8 | 1,1 | 1,3 | 1,3 | 1,4 | 1,6 | 1,8 | 1,8 |
| dk | nominal=max. | 4,3 | 5,5 | 6,8 | 7,5 | 8,1 | 9,5 | 10,8 | 12,4 |
| min. | 4 | 5,2 | 6,44 | 7,14 | 7,74 | 9,14 | 10,37 | 11,97 | |
| k | approx. | 1,3 | 1,7 | 2,1 | 2,3 | 2,5 | 3 | 3,4 | 3,8 |
| n | nominal | 0,6 | 0,8 | 1 | 1 | 1,2 | 1,2 | 1,6 | 1,6 |
| min. | 0,66 | 0,86 | 1,06 | 1,06 | 1,26 | 1,26 | 1,66 | 1,66 | |
| max. | 0,8 | 1 | 1,2 | 1,2 | 1,51 | 1,51 | 1,91 | 1,91 | |
| r | max. | 0,8 | 1,1 | 1,4 | 1,5 | 1,6 | 1,9 | 2,1 | 2,4 |
| t | min. | 0,4 | 0,5 | 0,6 | 0,7 | 0,75 | 0,85 | 1 | 1,2 |
| max. | 0,6 | 0,75 | 0,95 | 1,05 | 1,15 | 1,35 | 1,5 | 1,75 | |
| y | max. Type C | 2 | 2,6 | 3,2 | 3,5 | 3,7 | 4,3 | 5 | 6 |
| max. Type F | 1,6 | 2,1 | 2,5 | 2,7 | 2,8 | 3,2 | 3,6 | 3,6 | |
| l nominal |
Type C | Type F | Approximate mass (7,85 kg/dm³), per 1000 units in kg | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min. | max. | min. | max. | ST2,2 | ST2,9 | ST3,5 | (ST3,9) | ST4,2 | ST4,8 | ST5,5 | ST6,3 | |
| 6,5 | 5,7 | 7,3 | 5,7 | 6,5 | 0,14 | 0,242 | ||||||
| 9,5 | 8,7 | 10,3 | 8,7 | 9,5 | 0,2 | 0,35 | 0,548 | 0,658 | 0,775 | 1,1 | ||
| 13 | 12,2 | 13,8 | 12,2 | 13 | 0,27 | 0,476 | 0,722 | 0,88 | 1,02 | 1,45 | 2,11 | 2,53 |
| 16 | 15,2 | 16,8 | 15,2 | 16 | 0,33 | 0,584 | 0,871 | 1,07 | 1,23 | 1,75 | 2,49 | 3,07 |
| 19 | 18,2 | 19,8 | 18,2 | 19 | 0,692 | 1,02 | 1,26 | 1,44 | 2,05 | 2,87 | 3,61 | |
| 22 | 21,2 | 22,8 | 20,7 | 22 | 1,17 | 1,45 | 1,65 | 2,35 | 3,26 | 4,15 | ||
| 25 | 24,2 | 25,8 | 23,7 | 25 | 1,32 | 1,64 | 1,86 | 2,65 | 3,65 | 4,69 | ||
| 32 | 30,7 | 33,3 | 30,7 | 32 | 2,35 | 3,35 | 4,56 | 5,95 | ||||
| 38 | 36,7 | 39,3 | 36,7 | 38 | 3,95 | 5,34 | 7,03 | |||||
The DIN 7972 is designed to save time. Unlike a standard machine screw nut bolt, you don’t need a pre-threaded hole or a nut. This screw cuts its own threads as you drive it into metal or plastic. The countersunk head ensures that once it’s in, the surface stays perfectly flat and smooth.
Use DIN 7972 when you can’t reach the back of a panel to put a nut. It is the go-to bolt fastener for thin sheet metal, aluminium sections, and plastic enclosures. It’s widely used in bus body building, furniture, and electrical trunking across India.
Just like other countersunk screws, the length of a DIN 7972 is the “Overall Length”. You measure from the very top of the flat head to the sharp tip. Since the head disappears into the material, the total length is what matters for your sheet thickness.
You can, but it’s not ideal. Every time you remove and re-insert a self-tapping bolt fastener, the “female” threads in the material get weaker. If you need a joint that will be opened frequently, a machine screw nut bolt with a permanent insert is a better choice.
Quality matters when you are cutting threads. Vimal Industrial Corporation provides high-precision DIN 7972 stock with sharp, consistent threads and accurate head angles. As a leading Nut Bolt Supplier Mumbai, we provide full certification and same-day dispatch across India, ensuring your assembly line never stops.
