Fastening performance often depends on selecting the right nut for the application rather than simply choosing a standard option. DIN 557 Square Nuts are preferred in assemblies where a larger bearing surface and a secure grip during installation are important. Their square profile helps distribute tightening force more effectively while making the nut easier to hold during assembly, especially in applications where installation space or tool movement is restricted.
Manufactured in accordance with DIN 557 specifications, these square nuts provide precise thread engagement with compatible bolts, helping create stable and dependable joints. Their simple yet functional design makes them suitable for machinery, fabricated structures, equipment manufacturing, industrial maintenance, and engineering applications where consistent fastening plays an important role in overall assembly performance.
At Vimal Industrial Corporation, we supply DIN 557 Square Nuts in stainless steel across multiple metric sizes to support diverse industrial requirements. Whether the requirement is for new equipment, fabrication work, or replacement during maintenance, we help customers source fastening solutions that match their application without compromising on dimensional accuracy or material quality.
As a trusted DIN 557 Square Nuts Supplier in India, we work with OEMs, engineering companies, fabricators, and industrial buyers by providing dependable product availability, application-focused assistance, and stainless steel fastening solutions for a wide range of industrial projects.
DIN 557 Square Nuts offer a practical fastening solution for applications that demand secure grip, accurate alignment, and dependable joint stability. Their square profile provides a larger bearing surface than conventional nut designs, helping improve load distribution while making installation and tightening more controlled. This makes them a suitable choice for fabrication work, machinery, industrial equipment, structural frameworks, and wooden assemblies where reliable fastening is essential.
At Vimal Industrial Corporation, we supply DIN 557 Square Nuts in a comprehensive range of sizes to support diverse industrial applications. As part of our portfolio of stainless steel fasteners, every nut is selected for precise threading, dimensional consistency, and dependable performance, ensuring smooth compatibility with matching bolts across different engineering requirements.
As an Authorized APL Fasteners Dealer, we supply genuine fastening solutions backed by dependable stock availability and responsive service. From routine production requirements to bulk industrial procurement, businesses across India rely on Vimal Industrial Corporation for consistent product quality, timely deliveries, and application-focused support for their fastening requirements.
DIN 557 Square Nuts are suitable for fastening applications where secure positioning, stable clamping, and reliable thread engagement are important. Their square profile makes them a practical choice across industries that require dependable fastening in both new installations and maintenance work.
Common Applications Include:
Construction & Infrastructure – Used for fastening structural steel sections, support brackets, and framework assemblies where a stable connection is essential.
Railway & Transportation – Applied in railway equipment, transport infrastructure, and vehicle assemblies that require dependable fastening under continuous operational conditions.
Woodworking & Furniture Manufacturing – Suitable for timber structures, furniture assemblies, and wooden frameworks where a firm grip and neat installation are required.
Industrial Machinery & Equipment – Used in machine frames, production equipment, and mechanical assemblies to maintain secure bolted connections during operation.
Electrical & Utility Installations – Ideal for securing support channels, mounting brackets, electrical panels, and utility infrastructure.
General Engineering & Fabrication – Preferred for fabrication projects, equipment manufacturing, repair work, and industrial maintenance where accurate and consistent fastening is required.
Selecting the right supplier is just as important as selecting the right fastener. At Vimal Industrial Corporation, we combine product expertise with dependable supply to help manufacturers, fabricators, contractors, and industrial buyers source DIN 557 Square Nuts without unnecessary procurement delays.
Why clients choose us:
✅ Authorized APL Fasteners Dealer – Genuine DIN 557 Square Nuts sourced from a recognised manufacturer with assured quality and accurate specifications.
✅ Ready Stock Across Standard Sizes – Immediate availability for commonly required sizes, helping reduce lead times and keep projects moving.
✅ Comprehensive Stainless Steel Fasteners Range – Along with DIN 557 Square Nuts, we supply a wide selection of stainless steel fasteners to simplify sourcing from a single supplier.
✅ Support for Bulk & Project Orders – Flexible supply solutions for OEMs, contractors, distributors, and large-scale industrial procurement.
✅ Pan-India Supply Network – Fast and reliable dispatch to manufacturing units, fabrication facilities, and project sites across India.
✅ Responsive Customer Support – Quick quotations, product assistance, and prompt order processing to ensure a smooth purchasing experience.
Whether you need a regular supply of DIN 557 Square Nuts or a dependable partner for stainless steel fasteners, Vimal Industrial Corporation is committed to delivering the right products with consistent availability and reliable service.
| Thread size d |
dimensions in mm | |||||
|---|---|---|---|---|---|---|
| M5 | M6 | M8 | M10 | M12 | M16 | |
| P | 0,8 | 1 | 1,25 | 1,5 | 1,75 | 2 |
| dw min. |
6,7 | 8,7 | 11,5 | 14,5 | 15,5 | 22 |
| e max. |
11,3 | 14,1 | 18,4 | 22,6 | 24 | 33,9 |
| e min. |
9,93 | 12,53 | 16,34 | 20,24 | 21,54 | 30,11 |
| m Nominal size max. |
4 | 5 | 6,5 | 8 | 10 | 13 |
| m min. |
3,52 | 4,52 | 5,92 | 7,42 | 9,42 | 12,3 |
| mw min. |
2,5 | 3,2 | 4,1 | 5,2 | 6,6 | 8,6 |
| s Nominal size max. |
8 | 10 | 13 | 16 | 17 | 24 |
| s min. |
7,64 | 9,64 | 12,57 | 15,57 | 16,57 | 23,16 |
| weight kg/1000pcs |
1,31 | 2,77 | 5,5 | 10,7 | 13 | 38,2 |
A DIN 557 nut has a larger surface area, which provides a stronger grip against the material. This prevents the nut from spinning or loosening in high-vibration assemblies. In India, these are highly preferred for railway tracks and heavy machinery where a “blind” installation is required.
The square shape allows the DIN 557 nut to sit perfectly in a slot or channel, locking it in place. This allows you to tighten the bolt fastener from one side without needing a second wrench to hold the nut, making it ideal for tight industrial spaces.
Yes, they are commonly available in Zinc-plated steel and Stainless Steel Fasteners (A2/A4). If your project is located in Mumbai, using SS 316 grade ensures that the square nut won’t rust or seize even when exposed to salty sea air.
Yes, because they have more contact area with the surface, they distribute the pressure more evenly than hex nuts. This makes them a great bolt fastener choice for wood or soft metal applications where you want to avoid crushing the material.
Check for clean internal threads and a smooth, burr-free finish on all four sides. A trusted Nut Bolt Supplier like Vimal Industrial provides Industrial Hardware that meets strict DIN tolerances, ensuring a perfect fit every time.
