BS 1083 Hexagon Nuts are manufactured for fastening applications that use British Standard thread systems, making them suitable for equipment and assemblies designed with BSW and BSF threads. Their standardized dimensions help ensure proper thread engagement and compatibility with matching fasteners, supporting accurate assembly across industrial applications.
Designed with a six-sided profile, these hexagon nuts allow convenient installation using standard tools while providing a secure threaded connection. BS 1083 Hexagon Nuts are widely used in machinery maintenance, engineering equipment, fabrication work, and industrial installations where British Standard fasteners continue to be specified.
Manufactured in stainless steel, these nuts offer excellent corrosion resistance and are suitable for applications exposed to moisture, chemicals, and demanding operating environments. Their dimensional consistency also helps simplify maintenance and replacement in existing British Standard assemblies.
As a BS 1083 Hexagon Nuts supplier in India, Vimal Industrial Corporation offers stainless steel nuts in different thread sizes and specifications to support diverse industrial requirements. We work with OEMs, maintenance teams, fabricators, contractors, and industrial buyers by providing fastening solutions that match application requirements with dependable product availability.
BS 1083 Hexagon Nuts continue to be used in industries where British Standard threaded fasteners remain part of existing equipment and engineering systems. Designed for BSW and BSF thread applications, these nuts help maintain compatibility during equipment installation, maintenance, and component replacement without requiring modifications to existing assemblies.
As an authorized APL Fasteners dealer, Vimal Industrial Corporation supplies BS 1083 Hexagon Nuts in stainless steel options to meet varied industrial requirements. Available in multiple thread sizes and specifications, our range supports OEMs, maintenance teams, engineering companies, and industrial buyers looking for fastening solutions that match British Standard applications.
To simplify procurement, we also provide product-related documentation, including material details and traceability records wherever required. With application-focused support and consistent product availability, Vimal Industrial Corporation helps businesses source BS 1083 Hexagon Nuts for both planned procurement and ongoing maintenance requirements.
BS 1083 Hexagon Nuts are primarily used in assemblies that continue to follow British Standard thread systems. Their compatibility with BSW and BSF threaded bolts makes them a practical choice for maintenance, equipment refurbishment, and industrial installations where replacing the complete fastening system is not feasible.
Common Applications Include:
Process Industries
Processing facilities rely on these stainless steel fasteners for pumps, valves, piping systems, and equipment connections where corrosion resistance and dependable fastening are important for day-to-day operations.
Power Generation Facilities
BS 1083 Hexagon Nuts are used during maintenance of turbines, boilers, condensers, and auxiliary equipment that continue to operate with imperial-threaded fastening systems.
Heavy Engineering Applications
Engineering workshops and fabrication units use these nuts while rebuilding industrial machinery, presses, gearboxes, and mechanical assemblies that require British Standard thread compatibility.
Infrastructure and Transportation
They are suitable for railway maintenance, transport equipment, and structural repair work where existing BSW or BSF threaded components need compatible replacement fasteners.
Industrial MRO Operations
For maintenance, repair, and overhaul (MRO) activities, BS 1083 Hexagon Nuts provide a practical fastening solution for keeping legacy equipment operational without altering original thread specifications.
Vimal Industrial Corporation has built a strong reputation in the industrial fasteners space through consistent supply, practical understanding of applications, and dependable service. We specialize in supplying BS 1083 Hex Nuts that meet required performance standards and suit industries like infrastructure, automotive, power, and heavy engineering. As a reliable nut bolt supplier, our focus is always on delivering the right product, on time, without complications.
Why clients across India choose us:
✅ Authorized APL Fasteners Dealer – We supply genuine APL Fasteners products with product documentation and specification support wherever required.
✅ Specialists in Stainless Steel Fasteners – Our range includes BS 1083 Hexagon Nuts manufactured in stainless steel for applications requiring corrosion resistance, durability, and dependable fastening performance.
✅ Wide Range of Specifications – Available in multiple thread sizes and configurations to support machinery, fabrication, maintenance, and engineering applications.
✅ Bulk Procurement Support – Whether you require scheduled deliveries or high-volume orders, we help streamline procurement for OEMs, contractors, and industrial buyers.
✅ Application-Based Product Guidance – As an experienced nut bolt supplier, we help customers select fastening solutions based on equipment specifications and installation requirements.
✅ Reliable Supply Across India – With an organized supply network, we ensure smooth order processing and consistent availability for ongoing industrial requirements.
Whether you’re looking for a BS 1083 Hexagon Nuts supplier in India or sourcing stainless steel fasteners for industrial applications, Vimal Industrial Corporation provides application-focused solutions backed by industry experience and responsive customer support.
| Nominal Size | TPI / Thread Series | Unit | Width Across Flats F | Width Across Corners G (max.) |
Thickness Hex Nut H | Minor Ø (Bore) d | |||
|---|---|---|---|---|---|---|---|---|---|
| Min. | Max. | Min. | Max. | Min. | Max. | ||||
| 1/4″ | 0.25 – 20 UNC | inch | 0.438 | 0.445 | 0.510 | 0.190 | 0.200 | 0.196 | 0.207 |
| mm | 0.110 | 0.111 | 0.128 | 0.048 | 0.050 | 0.049 | 0.052 | ||
| 5/16″ | 0.3125 – 18 UNC | inch | 0.518 | 0.525 | 0.610 | 0.240 | 0.250 | 0.252 | 0.265 |
| mm | 0.130 | 0.131 | 0.153 | 0.060 | 0.063 | 0.063 | 0.066 | ||
| 3/8″ | 0.375 – 16 UNC | inch | 0.592 | 0.600 | 0.690 | 0.302 | 0.312 | 0.307 | 0.321 |
| mm | 0.148 | 0.150 | 0.173 | 0.076 | 0.078 | 0.077 | 0.080 | ||
| 7/16″ | 0.4375 – 14 UNC | inch | 0.702 | 0.710 | 0.820 | 0.365 | 0.375 | 0.360 | 0.376 |
| mm | 0.176 | 0.178 | 0.205 | 0.091 | 0.094 | 0.090 | 0.094 | ||
| 1/2″ | 0.5 – 13 UNC | inch | 0.812 | 0.820 | 0.950 | 0.427 | 0.437 | 0.417 | 0.434 |
| mm | 0.203 | 0.205 | 0.238 | 0.107 | 0.109 | 0.104 | 0.109 | ||
| 9/16″ | 0.5625 – 12 UNC | inch | 0.912 | 0.920 | 1.060 | 0.490 | 0.500 | 0.472 | 0.490 |
| mm | 0.228 | 0.230 | 0.265 | 0.123 | 0.125 | 0.118 | 0.123 | ||
| 5/8″ | 0.625 – 11 UNC | inch | 1.000 | 1.010 | 1.170 | 0.552 | 0.562 | 0.527 | 0.546 |
| mm | 0.250 | 0.253 | 0.293 | 0.138 | 0.141 | 0.132 | 0.137 | ||
| 3/4″ | 0.75 – 10 UNC | inch | 1.900 | 1.190 | 1.390 | 0.677 | 0.687 | 0.642 | 0.663 |
| mm | 0.475 | 0.298 | 0.348 | 0.169 | 0.172 | 0.161 | 0.166 | ||
| 7/8″ | 0.875 – 9 UNC | inch | 1.288 | 1.288 | 1.500 | 0.740 | 0.750 | 0.755 | 0.778 |
| mm | 0.322 | 0.322 | 0.375 | 0.185 | 0.188 | 0.189 | 0.195 | ||
| 1″ | 1 – 8 UNC | inch | 1.468 | 1.468 | 1.710 | 0.865 | 0.875 | 0.865 | 0.890 |
| mm | 0.367 | 0.367 | 0.428 | 0.216 | 0.219 | 0.216 | 0.223 | ||
| 1 1/8″ | 1.125 – 8 UN | inch | 1.640 | 1.640 | 1.930 | 0.990 | 1.000 | 0.990 | 1.015 |
| mm | 0.410 | 0.410 | 0.483 | 0.248 | 0.250 | 0.248 | 0.254 | ||
| 1 1/4″ | 1.25 – 8 UN | inch | 1.815 | 1.815 | 2.150 | 1.105 | 1.125 | 1.115 | 1.140 |
| mm | 0.454 | 0.454 | 0.538 | 0.276 | 0.281 | 0.279 | 0.285 | ||
| 1 3/8″ | 1.375 – 8 UN | inch | 2.005 | 2.005 | 2.370 | 1.230 | 1.250 | 1.240 | 1.265 |
| mm | 0.501 | 0.501 | 0.593 | 0.308 | 0.313 | 0.310 | 0.316 | ||
| 1 1/2″ | 1.5 – 8 UN | inch | 2.175 | 2.175 | 2.560 | 1.335 | 1.375 | 1.365 | 1.390 |
| mm | 0.544 | 0.544 | 0.640 | 0.334 | 0.344 | 0.341 | 0.348 | ||
| 1 3/4″ | 1.75 – 8 UN | inch | 2.520 | 2.520 | 2.980 | 1.605 | 1.625 | 1.615 | 1.640 |
| mm | 0.630 | 0.630 | 0.745 | 0.401 | 0.406 | 0.404 | 0.410 | ||
| 2″ | 2 – 8 UN | inch | 2.700 | 2.700 | 3.190 | 1.730 | 1.750 | 1.865 | 1.890 |
| mm | 0.675 | 0.675 | 0.798 | 0.433 | 0.438 | 0.466 | 0.473 | ||
It uses the British Standard Whitworth (BSW) thread system with a 55-degree angle. This makes it essential for maintaining older machinery or British-design equipment that doesn’t fit standard metric bolts.
Unlike “Black” or rough nuts, BS 1083 nuts are machined to tighter tolerances for a smoother finish. This ensures a high-quality bolt fastener connection in precision engineering and high-vibration environments.
If your machinery is of British origin or is a legacy model, it likely requires British Standard Bolts. The best way to check is by measuring the Threads Per Inch (TPI). If the TPI doesn’t match metric standards, you need a specialized Nut Bolt Supplier to provide the correct BS 1083 fit
Yes, definitely. While steel is common, Stainless Steel Fasteners are the best choice for preventing rust. If your project is in a humid city like Mumbai, using SS grade BS 1083 nuts ensures your bolt fastener won’t seize up due to corrosion.
Always ask for a Mill Test Report (MTR). A transparent Nut Bolt Supplier like Vimal Industrial will provide documentation proving that your BS 1083 Hex Nut meets the chemical and physical strength requirements for your industrial project.
