Best Hex Nuts Manufacturer, Supplier, and Exporter in India – Mcneil Instruments
Mcneil Instruments is a leading Hex Nuts manufacturer, supplier, and exporter based in Mumbai, India. Known for delivering precision-engineered hex nuts, we cater to diverse industries with products designed for strength, durability, and optimal performance. Crafted from premium-quality materials and adhering to international standards, our hex nuts ensure secure and reliable fastening solutions across various demanding applications.
What Are Hex Nuts?
Hex nuts are one of the most widely used types of fasteners, featuring a six-sided shape for optimal grip and easy tool accessibility. Designed with a threaded hole, they work in conjunction with bolts or screws to securely fasten parts together through a combination of thread friction, slight bolt tension, and compression of the connected parts.
The hexagonal shape allows for efficient tightening or loosening with tools like wrenches, spanners, or ratchets, even in tight spaces, requiring only a sixth of a rotation to move to the next flat side. Hex nuts come in a variety of materials (mild steel, carbon steel, stainless steel, and alloy steel) and finishes (zinc plating, galvanizing, etc.), offering enhanced durability and resistance to corrosion for various applications.
Key Features and Benefits
| Feature | Description |
| Wide Size Range | Available in various metric (M6-M100) and imperial sizes. |
| Material Variety | Made from mild steel, carbon steel, alloy steel, and stainless steel. |
| Corrosion Resistance | Different finishes like GI, HDG, PTFE, and nickel coating for durability. |
| Easy to Use | Hex shape provides optimal grip for tools and easy tightening/loosening. |
| Versatile Applications | Suitable for automotive, construction, machinery, and DIY projects. |
| Accessible Design | Six-sided design allows access from all angles with standard tools. |
Standards and Specifications
| Specification | Details |
| Standards | ASTM, ASME, BS, DIN, BS EN ISO, JIS |
| Material Options | Mild Steel, Carbon Steel, Alloy Steel, Stainless Steel |
| Size Range | Metric: M6 to M100; Imperial: ¼” to 4” |
| Thread Types | UNC, 8UN, UNF, Metric Coarse, Metric Fine |
| Finishes Available | Black, GI, Yellow, HDG, Mgalv, Cadmium, Nickel, PTFE |
Typical Grades and Standards
| Standard | Grades |
| DIN934 | Class 4, 8, 10, 12; A270, A280, A470, A480 |
| ASTM A194/A194M | Grades 2H, 2HM, 4L, 7L, 7LM |
| ASTM A563/A563M | Grades 8, 10S, A, B, C, D, DH, DH3 |
| Custom Options | Hot-dip galvanized hex nuts tapped oversize for coating compatibility |
Hex Nuts Dimensions and Specifications Table
| Nominal Size | Width Across Flats (F) | Width Across Corners (C) | Thickness (H) | Part Numbers (Domestic) | Part Numbers (Import) |
| Basic | Max | Min | Max | Min | |
| 1/2 | 3/4 | 0.75 | 0.736 | 0.866 | 0.84 |
| 5/8 | 15/16 | 0.938 | 0.922 | 1.083 | 1.051 |
| 3/4 | 1 1/8 | 1.125 | 1.088 | 1.299 | 1.24 |
| 7/8 | 1 5/16 | 1.312 | 1.269 | 1.516 | 1.447 |
| 1 | 1 1/2 | 1.5 | 1.45 | 1.732 | 1.653 |
| 1 1/8 | 1 11/16 | 1.688 | 1.631 | 1.949 | 1.859 |
| 1 1/4 | 1 7/8 | 1.875 | 1.812 | 2.165 | 2.066 |
| 1 3/8 | 2 1/16 | 2.062 | 1.994 | 2.382 | 2.273 |
| 1 1/2 | 2 1/4 | 2.25 | 2.175 | 2.598 | 2.48 |
Ordering Information
When placing an order, provide:
- Dimensions – Size (metric or imperial)
- Standard and Grade
- Finish – Black, GI, Yellow, HDG, Mgalv, Cadmium, Nickel, PTFE, etc.
Hex nuts from Mcneil Instruments deliver unmatched reliability, durability, and performance, making them ideal for both standard and heavy-duty applications. We are a trusted hex nuts manufacturer, supplier, and exporter, offering precision-engineered solutions to industries worldwide. For customized solutions or bulk orders, contact us today and explore our premium range of nuts that adhere to global quality standards.
Get in touch with Mcneil Instruments today to learn more about our hex nuts. Request a quote and experience unmatched quality and service for all your fastening needs!