Nut Bolts Manufacturers, Suppliers and Exporters in India
Mcneil Instruments is your one-stop destination for high quality nut bolts manufacturers in India. As leading bolt and nut manufacturers, supplier, and exporter of nut bolts in India we specialize in providing a wide range of products to meet your specific needs. Whether you’re in need of standard nuts and bolts or customized fasteners, we have the expertise and capabilities to deliver. As bolts and nuts suppliers and manufacturers, we understand the importance of quality and reliability. That’s why we only source the finest materials to manufacture our products, ensuring durability and performance. Our stainless steel bolts and nuts are particularly popular for their corrosion resistance and strength, making them ideal for various applications across industries
At Mcneil Instruments, a nut and bolt manufacturers, Our commitment to customer satisfaction is unwavering, and we go above and beyond to ensure that our clients receive the highest quality products and services. Whether you’re a small-scale business or a large industrial enterprise, you can count on us to meet your requirements promptly and efficiently. When it comes to nuts, bolts, and fasteners, quality and specification are paramount. At Mcneil Instruments, we understand the importance of meeting the highest standards in both aspects.
For a complete guide to our Nuts & Bolts Weight Chart, download the detailed product summary in PDF format by clicking the button below.
What are Nut Bolts?
Nut bolts, commonly referred to simply as bolts, are threaded fasteners that work together with nuts to join two or more objects securely. They consist of a cylindrical shaft with external threads and a head at one end. The nut, which has internal threads, is screwed onto the bolt to create a tight and secure connection. Nut bolts come in various sizes, shapes, and materials to accommodate different applications and requirements.
Mcneil Industries, Your Source for Quality Fabrication Materials and Nut Bolts
At Mcneil Industries, we provide comprehensive fabrication materials for overhead transmission lines. Our extensive inventory includes both mild steel (M S) and galvanized nut bolts in all sizes essential for construction projects. Nut bolts are a crucial component in fabrication construction, and we ensure that our stock comprises only well-finished and precision-made nut bolts.
Our available nut bolt sizes include:
- 5/8″ (16mm) Nut
- 1/2″ (12mm) Nut
- 5/8″ (16mm) Bolt
- 1/2″ (12mm) Bolt
At Mcneil Industries, we prioritize quality. Our threaded nut bolts undergo stringent quality checks and adhere to the highest standards. We offer our products in both loose and wholesale quantities to meet diverse customer needs. Additionally, we stock GI (galvanized iron) nut bolts.
Quality nut bolt manufacturer and supplier in India
Quality is ingrained in every aspect of our bolt & nut manufacturing process. From the selection of raw materials to the final inspection of finished products, we adhere to strict quality control measures to ensure that our nuts and bolts meet or exceed industry standards. Our commitment to quality is reflected in the durability, reliability, and performance of our products.
In addition to quality, specifications play a crucial role in determining the suitability of nuts and bolts for various applications. Different industries and projects require fasteners with specific dimensions, materials, and performance characteristics. That’s why we offer a wide range of nuts, bolts, and fasteners in various sizes, materials, and finishes to meet diverse specifications.
Whether you need nuts and bolts for automotive, construction, manufacturing, or any other industry, you can rely on Mcneil Instruments to provide products that meet your exact specifications. Our team of experts works closely with clients to understand their requirements and recommend the most suitable nuts and bolts for their applications.
Types of Nuts Manufactured by Mcneil Instruments
- Hex Nut: General-purpose nut, ideal for various secure connections.
- Heavy Hex Nut: Provides extra strength, suitable for heavy-duty applications.
- Nylon Insert Lock Nut: Prevents loosening due to vibration, ensuring stability.
- Jam Nut: Acts as a secondary lock in tight spaces.
- Wing Nut: Allows hand-tightening without tools for quick adjustments.
- Cap Nut: Covers exposed bolt ends for safety and aesthetics.
- Flange Nut: Spreads pressure over a wider area, resists loosening under vibration.
- Tee Nut: Used in wood to create threaded surfaces.
- Square Nut: Preferred when a square shape is necessary for specific applications.
- Coupling Nut: Connects two threaded rods for extended reachInconel 600 Nut Fittings
- Inconel 625 Nut Fittings
- Inconel 718 Nut Fittings
- Inconel 725 Nut Fittings
- Inconel 800 Nut Fittings
- Inconel 800H Nut Fittings
- Monel 400 Nut Fittings
- Monel K500 Nut Fittings
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Types of Bolts Manufactured by Mcneil Instruments
- Anchor Bolts: Secure structural elements to concrete, available in cast-in-place and drilled types.
- Arbor Bolts: Specialized bolts for securing blades to power tools.
- Blind Bolts: Ideal for securing in areas with limited access, requiring no backside nuts.
- Carriage Bolts: Smooth, domed head bolt, mainly used in wood for a clean finish.
- Elevator Bolts: Flat, countersunk head, designed for conveyor belt systems.
- Eye Bolts: Provide a strong anchor point for cables or hooks.
- Flange Bolts: Feature an integrated washer to spread load evenly.
- Serrated Flange Bolts: Offers enhanced grip with serrated edges to prevent loosening.
- Inconel 600 Bolt Fittings
- Inconel 625 Bolt Fittings
- Inconel 718 Bolt Fittings
- Inconel 725 Bolt Fittings
- Inconel 800 Bolt Fittings
- Inconel 800H Bolt Fittings
- Monel 400 Bolt Fittings
- Monel K500 Bolt Fittings
Specifications of Mcneil Instruments Nuts,Bolts
When it comes to fastener manufacturing, Mcneil Instruments stands out as a trusted nut bolts manufacturer and bolts and nuts supplier. We specialize in producing stainless steel bolts and nuts, adhering to stringent specifications. Our bolt & nut manufacturing process ensures that every product meets the highest standards of quality and durability. With Mcneil Instruments, you can rely on us as your preferred nut bolt manufacturer for all your fastening needs. Below are some Specifications Designed for Materials Used for Fastener Manufacturing, Includes Nuts,Bolts
ASTM Specifications for Bolt Fasteners
| A193 | – Alloy steel and stainless steel bolting materials for high temperature or high pressure service. |
| A307 |
|
| A320 |
|
| A325 |
|
| A354 |
|
| A449 |
|
| A490 |
|
| F568 | – Standard for metric bolts, screws and studs that are used in general engineering applications |
| F593 |
|
| F1554 |
|
ASTM Specifications for Nut Fasteners
| A194 | – Standard Specification for Carbon and Alloy Steel Nuts for Bolts for High Pressure or High Temperature Service |
| A563 |
|
| A594 |
|
| F467 |
|
We believe in transparency and accountability when it comes to product specifications. Our catalog provides detailed information about each product, including dimensions, materials, and performance ratings, to help customers make informed decisions.
quality and specification are non-negotiable when it comes to nuts, bolts, and fasteners. At Mcneil Instruments, we are committed to stainless steel bolts and nuts suppliers to meet the highest standards of quality and adhere to the most stringent specifications. With us, you can trust that you’re getting the best nuts and bolts for your needs.
Products
Comprehensive Range of Industrial Nuts, Bolts, Screws and Fasteners for Every Application
Nuts – Specification Table
| Parameter | Specification |
| Material Grades | SS 304, SS 316, SS 316L, Carbon Steel, Alloy Steel, Brass, Inconel 600, Inconel 625, Inconel 718, Inconel 725, Inconel 800, Inconel 800H, Monel 400, Monel K500 |
| Standards | DIN 934, ISO 4032, ASTM A194, BS 1768 |
| Thread Types | Metric, UNC, UNF, BSW, BSP |
| Sizes | M3 to M72 / 1/8″ to 3″ |
| Coatings | Zinc Plated, Hot Dip Galvanized, Black Oxide, PTFE Coated |
| ISO Certification | ISO 9001:2015, ISO 14001:2015 |
| Applications | Petrochemical, Construction, Automotive, Marine, Power Plants |
| Surface Finish | Polished, Coated, Self-Colored |
Bolts – Specification Table
| Parameter | Specification |
| Material Grades | SS 304, SS 316, SS 321, MS, High Tensile (Grade 8.8, 10.9, 12.9), Inconel 600, Inconel 625, Inconel 718, Inconel 725, Inconel 800, Inconel 800H, Monel 400, Monel K500 |
| Standards | DIN 931, DIN 933, ISO 4014/4017, ASTM A193, BS 3692 |
| Thread Types | Full Thread, Half Thread, UNC, UNF, Metric |
| Sizes | M5 to M100 / 3/16″ to 4″ |
| Coatings | HDG, Black Oxide, Zinc Flake, Nickel Plated |
| ISO Certification | ISO 9001:2015, ISO 45001:2018 |
| Applications | Heavy Engineering, Oil & Gas, Railways, Bridges |
| Head Types | Hex, Socket Head, Round, Square, Flange |
Washers – Specification Table
| Parameter | Specification |
| Material Grades | SS 304, SS 316, Spring Steel, Brass, Copper |
| Standards | DIN 125, DIN 9021, ISO 7089/7090, ASTM F436 |
| Types | Flat, Spring, Lock, Toothed, Fender |
| Sizes | M3 to M72 / 1/8″ to 3″ |
| Coatings | Zinc Plated, HDG, Phosphate, Cadmium Plated |
| ISO Certification | ISO 9001:2015, ISO 14001:2015 |
| Applications | Piping Systems, Electrical, HVAC, Structural Assemblies |
| Tolerance | DIN 2768-M / ISO 2768-m |
Screws – Specification Table
| Parameter | Specification |
| Material Grades | SS 304, SS 316, MS, Brass, Aluminum |
| Standards | DIN 7985, DIN 965, ISO 14581, ASTM A320, BS 4183 |
| Drive Types | Slotted, Phillips, Torx, Hex Socket |
| Thread Types | Metric, UNC, Self-Tapping, Self-Drilling |
| Sizes | M1.6 to M20 / 1/16″ to 1″ |
| ISO Certification | ISO 9001:2015, ISO 45001:2018 |
| Applications | Furniture, Appliances, Panels, Machine Assembly |
| Head Types | Pan, Countersunk, Cheese, Round, Flat |
Frequently Asked Questions (FAQs)
1. What types of nut bolts does Mcneil Instruments manufacture?
Mcneil Instruments manufactures a comprehensive range of industrial nut bolts, including Hex Nuts, Heavy Hex Nuts, Lock Nuts, Flange Nuts, Coupling Nuts, Anchor Bolts, Carriage Bolts, Eye Bolts, Flange Bolts, Stud Bolts, U Bolts, and other fastening solutions for industrial applications.
2. What materials are available for your nuts and bolts?
We manufacture nuts and bolts in Stainless Steel, Carbon Steel, Alloy Steel, Mild Steel, Brass, and premium nickel alloy grades including Inconel 600, Inconel 625, Inconel 718, Inconel 725, Inconel 800, Inconel 800H, Monel 400, and Monel K500.
3. Do you manufacture Inconel Nut Fittings and Bolt Fittings?
Yes, we manufacture and supply Inconel 600 Nut Fittings, Inconel 625 Nut Fittings, Inconel 718 Nut Fittings, Inconel 725 Nut Fittings, Inconel 800 Nut Fittings, Inconel 800H Nut Fittings, along with Inconel 600 Bolt Fittings, Inconel 625 Bolt Fittings, Inconel 718 Bolt Fittings, Inconel 725 Bolt Fittings, Inconel 800 Bolt Fittings, and Inconel 800H Bolt Fittings.
4. Do you supply Monel Nut Fittings and Bolt Fittings?
Yes, Mcneil Instruments supplies Monel 400 Nut Fittings, Monel K500 Nut Fittings, Monel 400 Bolt Fittings, and Monel K500 Bolt Fittings for marine, offshore, chemical processing, and high-corrosion environments.
5. Which industries use your nut bolts?
Our nut bolts are widely used in Oil & Gas, Petrochemical, Power Generation, Construction, Marine, Offshore, Automotive, Heavy Engineering, Infrastructure, Chemical Processing, and Manufacturing industries.
6. What standards do your nuts and bolts comply with?
Our products are manufactured according to international standards such as ASTM, ASME, DIN, ISO, BS, ASTM A193, ASTM A194, ASTM A320, ASTM A325, ASTM F593, and other industry-specific specifications.
7. What sizes of nuts and bolts are available?
We offer nuts ranging from M3 to M72 (1/8″ to 3″) and bolts ranging from M5 to M100 (3/16″ to 4″). Custom sizes and non-standard dimensions are also available upon request.
8. Can you provide customized nuts and bolts?
Yes, we provide customized nuts and bolts based on customer drawings, dimensions, thread standards, material grades, coatings, and project-specific requirements.
9. What surface finishes and coatings are available?
We offer various finishes and coatings including Zinc Plating, Hot Dip Galvanizing (HDG), Black Oxide, PTFE Coating, Nickel Plating, Zinc Flake Coating, and Passivation depending on the application requirements.
10. Why choose Mcneil Instruments as your nut bolt manufacturer and supplier?
Mcneil Instruments is a trusted nut bolt manufacturer, supplier, and exporter in India known for superior product quality, international standard compliance, competitive pricing, extensive material options, custom manufacturing capabilities, and timely global deliveries for industrial fastening solutions.