When it comes to strong and dependable fastening, DIN 557 Square Nuts offer a practical advantage over conventional designs. At Vimal Industrial Corporation, we supply high-quality square nuts that are built for performance, durability, and ease of use across demanding industrial applications.
Designed with a four-sided shape, these nuts provide better surface contact and a firmer grip during tightening. This not only improves torque handling but also reduces the chances of slipping or rounding, making them a preferred choice for applications where stability matters the most. From heavy machinery and construction frameworks to railway fittings and wooden assemblies, square nuts continue to play a crucial role in ensuring secure fastening.
Our DIN 557 square nuts are manufactured as per standard specifications, featuring clean threading, precise dimensions, and chamfered edges for smooth installation. We offer them in multiple material options including high-tensile carbon steel, stainless steel, and brass, allowing you to choose the right fit based on load requirements and environmental conditions.
At Vimal Industrial Corporation, the focus is not just on supplying fasteners, but on delivering reliability you can trust. With consistent stock availability, quality assurance, and timely delivery, we support industries that depend on strong, long-lasting fastening solutions.
DIN 557 Square Nuts are preferred for applications where a stable and secure hold is important. Their shape allows better surface contact, helping achieve a more balanced fastening, especially in structural work, wood applications, and general assemblies where consistency matters. They are also a practical choice in setups where maintaining tightness over time is required.
At Vimal Industrial Corporation, we supply DIN 557 square nuts in multiple sizes and finishes to match different industrial needs. As experienced bolts and nuts suppliers, we focus on ready availability and smooth supply for ongoing and project-based requirements. We also deal in a wide range of stainless steel fasteners, ensuring compatibility across different applications.
Being an authorized APL Fasteners dealer, we maintain consistent quality standards so you get a fastening solution that performs reliably in real working conditions.
DIN 557 Square Nuts are commonly used where a firm hold, better grip during tightening, and stable fastening are required across different setups.
Common Applications Include:
Construction & Infrastructure – Used in structural connections where stable fastening is needed in frameworks and assemblies.
Railway & Transportation – Suitable for applications that require consistent tightening and secure fitting.
Woodworking & Carpentry – Helps in achieving a strong hold in timber joints and furniture structures.
Heavy Machinery & Equipment – Used in mechanical setups where controlled tightening and grip matter.
Electrical & Utility Installations – Useful for mounting and support structures in panels and utility setups.
General Engineering – A practical fastening option for day-to-day industrial applications.
When it comes to sourcing from reliable bolts and nuts suppliers, consistency and availability matter the most. Vimal Industrial Corporation focuses on delivering DIN 557 square nuts with dependable supply and practical support for real industrial needs.
Why clients choose us:
✅ Authorized APL Fasteners Dealer – Genuine products with proper documentation.
✅ Extensive Stock Availability – Multiple sizes, grades, and finishes ready to dispatch.
✅ Bulk Order Fulfilment – Smooth supply for large-scale industrial and project requirements.
✅ Technical Expertise – Along with square nuts, we also deal in stainless steel fasteners for varied applications.
✅ Pan‑India Delivery – Timely supply across different locations without delays.
✅ Quality Assurance – Standard-compliant fasteners suitable for long-term use.
Whether you’re managing procurement for construction, machinery, or general engineering, we ensure a smooth and reliable sourcing experience without unnecessary delays.
| 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.
