At Unifit Metalloys Inc., we bring decades of metallurgical expertise and industry trust to offer a premium range of Monel 400 Hex Bolts engineered for extreme performance. As a specialist in high-nickel alloys, we understand the critical role fasteners play in corrosion-prone industries such as marine, oil & gas, and chemical processing. These hex bolts are crafted from nickel-copper alloy Monel 400 (UNS N04400) renowned for its resistance to seawater, acids and alkalis making them a dependable choice for challenging operating environments.
Every batch of bolts is precision-tested for mechanical strength, dimensional consistency and corrosion resistance to ensure reliable performance under pressure. Our Monel 400 Hex Bolts are available in a variety of head types, thread configurations, and custom lengths, supplied as per ASTM, ASME, DIN and other international standards. With our strong stock capabilities, tailored solutions and competitive pricing, Unifit is your trusted partner for industrial fastening needs.
Request QuoteWhat is a Monel 400 Hex Bolt?
A Monel 400 hex bolt is a high-performance fastener made from a nickel-copper alloy known for outstanding corrosion resistance especially in seawater, acids and alkalis. Its six-sided head ensures strong, secure fastening. Unlike stainless steel, Monel 400 offers excellent strength across a wide temperature range, is non-magnetic and resists stress corrosion cracking. Commonly used in marine, chemical, aerospace and oil & gas applications it delivers long-lasting performance in harsh environments where conventional bolts would fail.
Why Choose Monel 400 Hex Bolts from Unifit?
Unifit Metalloys Inc. stands out for its precision-engineered Monel 400 Hex Bolts, designed to perform under extreme corrosion, pressure, and temperature. Manufactured using premium UNS N04400 alloy, our bolts are ideal for marine, chemical, and offshore industries.
- Exceptional corrosion resistance
- Consistent mechanical strength
- Custom sizing & quick turnaround
- Stringent in-house testing & certifications
When it comes to reliability and longevity, Unifit’s Monel 400 Hex Bolts deliver unmatched performance for mission-critical applications.
Send Your Enquiry
Types of Monel 400 Hex Bolts
Monel 400 Hex Bolts are available in a wide range of types each tailored to suit specific mechanical, structural or corrosion-resistant requirements in critical applications such as marine, chemical and offshore industries. Check below for the complete list of available variants offered by Unifit:
- Monel 400 Hex Head Shoulder Bolts
- Monel 400 Threaded Hex Bolts
- Monel Alloy 400 Stud Hex Bolt
- Monel 400 Hex High Tensile Bolt
- Monel 400 Slotted Hex Bolts
- Monel 400 Heavy Hex Bolt
- Monel 400 Hex Structural Bolts
- Monel 400 Tension Control Hex Bolts
- Monel Alloy 400 Hex Tap Bolts
- Monel 400 Metric Hex Bolt
- Monel 400 Hex Socket Bolts
- Monel 400 Hexagon Flange Bolt
Monel 400 Hex Bolt Head Size Chart
Below is the standard head size chart for Monel 400 Hex Bolts. These dimensions ensure compatibility with industry-standard tools and precise fitting during assembly or maintenance:
| Bolt Diameter (inches) | Hex Head Size (inches) |
|---|---|
| 1/4" | 7/16" |
| 5/16" | 1/2" |
| 3/8" | 9/16" |
| 7/16" | 5/8" |
| 1/2" | 3/4" |
| 9/16" | 13/16" |
| 5/8" | 15/16" |
| 3/4" | 1 1/8" |
| 7/8" | 1 5/16" |
| 1" | 1 1/2" |
Monel 400 Hex Bolt Dimensions
Below is the detailed chart of standard dimensions for Monel 400 Hex Bolts covering nominal sizes, thread counts, head dimensions and minimum threaded lengths crucial for precise engineering applications:
| Nominal Size | Decimal (in.) | Threads per Inch | Head Width Across Flats | Head Width Across Corners | Head Height (Basic) | Min Threaded Length ≤6" | Min Threaded Length >6" |
|---|---|---|---|---|---|---|---|
| 1/4 | 0.2500 | UNC 20 / UNF 28 | 7/16 | 1/2 | 5/32 | 3/4 | 1 |
| 5/16 | 0.3125 | 18 / 24 | 1/2 | 9/16 | 13/64 | 7/8 | 1 1/8 |
| 3/8 | 0.3750 | 16 / 24 | 9/16 | 41/64 | 15/64 | 1 | 1 1/4 |
| 7/16 | 0.4375 | 14 / 20 | 5/8 | 45/64 | 9/32 | 1 1/8 | 1 3/8 |
| 1/2 | 0.5000 | 13 / 20 | 3/4 | 55/64 | 5/16 | 1 1/4 | 1 1/2 |
| 9/16 | 0.5625 | 12 / 18 | 13/16 | 59/64 | 23/64 | 1 3/8 | 1 5/8 |
| 5/8 | 0.6250 | 11 / 18 | 15/16 | 1 1/16 | 25/64 | 1 1/2 | 1 3/4 |
| 3/4 | 0.7500 | 10 / 16 | 1 1/8 | 1 9/32 | 15/32 | 1 3/4 | 2 |
| 7/8 | 0.8750 | 9 / 14 | 1 5/16 | 1 31/64 | 35/64 | 2 | 2 1/4 |
| 1 | 1.0000 | 8 / 12 | 1 1/2 | 1 45/64 | 39/64 | 2 1/4 | 2 1/2 |
| 1 1/8 | 1.1250 | 7 / 12 | 1 11/16 | 1 29/32 | 11/16 | 2 1/2 | 2 3/4 |
| 1 1/4 | 1.2500 | 7 / 12 | 1 7/8 | 2 7/64 | 25/32 | 2 3/4 | 3 |
| 1 3/8 | 1.3750 | 6 / 12 | 2 1/16 | 2 21/64 | 27/32 | 3 | 3 1/4 |
| 1 1/2 | 1.5000 | 6 / 12 | 2 1/4 | 2 17/32 | 1 5/16 | 3 1/4 | 3 1/2 |
Monel 400 Hex Bolts Thread Specifications
Monel 400 Hex Bolts are available in a variety of threading types to suit different industrial requirements. These threads ensure secure fastening, vibration resistance and high performance in demanding environments.
| Thread Type | Description |
|---|---|
| UNC (Unified Coarse) | Most common for general-purpose use; it offers good tensile strength and durability. |
| UNF (Unified Fine) | Provides better thread engagement and is ideal for precision applications. |
| Metric Coarse (M) | Standard for international applications; widely used in offshore and marine industries. |
| Metric Fine (MF) | Used where a finer pitch is required, offering better resistance to vibration. |
| Custom Threads | Available upon request, including BSW, BSF, or ACME threads. |
Thread tolerance classes are usually 6g (external) and 6H (internal) for metric threads or 2A/2B for UNC/UNF ensuring interchangeability and proper fit.
Monel 400 Hex Bolts Torque Chart
Below is a reference table outlining the recommended torque values for Monel 400 hex bolts based on common bolt sizes. These values ensure proper clamping force without compromising the material integrity:
| Bolt Size (inches) | Thread Pitch (UNC) | Torque (Nm) | Torque (lb-ft) |
|---|---|---|---|
| 1/4" | 20 TPI | 8.5 | 6.3 |
| 5/16" | 18 TPI | 17 | 12.5 |
| 3/8" | 16 TPI | 30 | 22.1 |
| 7/16" | 14 TPI | 48 | 35.4 |
| 1/2" | 13 TPI | 74 | 54.6 |
| 9/16" | 12 TPI | 106 | 78.2 |
| 5/8" | 11 TPI | 146 | 107.7 |
| 3/4" | 10 TPI | 259 | 191 |
| 7/8" | 9 TPI | 373 | 275 |
| 1" | 8 TPI | 562 | 415 |
Industrial Applications of Monel 400 Hex Bolts
Monel 400 Hex Bolts are trusted across industries where superior corrosion resistance, mechanical strength and longevity are essential. These bolts are particularly favored in applications where stainless steel fasteners may fail due to chloride-induced corrosion making Monel 400 hex bolts a long-term, cost-effective choice in critical assemblies.
- Marine
- Chemical Processing
- Oil & Gas
- Aerospace
- Power Generation (including Nuclear)
- Pharmaceutical
- Food & Beverage
- Pulp & Paper
- Desalination Plants
- Automotive
Get an Instant Quote on Monel 400 Hex Bolts
Looking for reliable, corrosion-resistant Monel 400 Hex Bolts at competitive prices? You're in the right place. At Unifit Metalloys Inc., we combine premium quality with fast response times and global shipping.
Whether it’s a custom order or bulk requirement, we’ll tailor the quote to your exact needs.
- Quick turnaround
- Expert support
- Hassle-free delivery
Fill out the form below and we’ll get back to you with a quote that works - fast, fair and accurate.
Add for sleek lead form here
Trusted Monel 400 Hex Bolts Suppliers, Manufacturers & Exporters
Unifit Metalloys Inc. is one of the trusted Monel 400 Hex Bolts suppliers, manufacturers and exporters in India delivering high-performance fastening solutions for marine, chemical and oil & gas industries. As a leading Monel 400 Hex Bolts manufacturer, we offer precision-forged, corrosion-resistant bolts in standard and custom specifications. Backed by global quality standards and fast worldwide shipping, Unifit is a preferred choice among top Monel 400 Hex Bolts exporters serving clients across Asia, Europe, the Middle East and beyond.
Frequently Asked Questions About Monel 400 Hex Bolts
Are Monel 400 Hex Bolts suitable for high-temperature applications?
Yes, they can perform well in high-temperature environments up to 480°C (900°F) making them suitable for heat exchangers and boilers.
Can I get custom sizes for Monel 400 Hex Bolts?
Absolutely, Unifit offers customization in sizes, thread pitch and head styles as per your project requirements.
How are Monel 400 Hex Bolts different from stainless steel bolts?
Unlike stainless steel, Monel 400 offers superior resistance to acids, alkalis and saltwater making it a better choice for harsh environments.
Do you provide test certificates with the bolts?
Yes, all our bolts come with full traceability and test certifications including material, PMI and mechanical properties.
Monel 400 Hex Bolts, Alloy UNS N04400 Hexagon Bolts, Monel 2.4360 Heavy Hex Bolts, Monel 400 Full Threaded Hex Bolts, Monel 400 Hex Flange Bolts, Monel 400 Hex Machine Bolts, Monel 400 Hex Head Shoulder Bolts, Monel Alloy 400 Hex Tap Bolts, Monel 400 Hexagonal Head Bolt Supplier in Mumbai, India.
Request Quote