High-Temperature Monel K-500 Hex Head Bolt
Product Overview
High-Temperature Monel K-500 Hex Head Bolt is a premium fastener manufactured using Monel K-500 alloy, known for its exceptional strength and corrosion resistance in extremely harsh environments. These hex bolts are engineered to withstand high-pressure, high-temperature applications without compromising structural integrity, making them a preferred choice in sectors like marine, aerospace, power generation, and chemical processing.
At Flybear Fastener, we specialize in the production and supply of high-performance fasteners, including the robust Monel K-500 Hex Head Bolts, ensuring top-notch quality, reliability, and durability across all industrial applications.

Product Specification Table
| Item | Specification | 
|---|---|
| Product Name | High-Temperature Monel K-500 Hex Head Bolt | 
| Material | Monel K-500 (UNS N05500) | 
| Type | Hex Head Bolt | 
| Size Range | M6 – M36 or Customized | 
| Length | 10mm – 200mm | 
| Thread Type | Metric / Inch / UNF / UNC | 
| Head Type | Hexagon | 
| Quantity | Bulk or Custom Packaging | 
| Availability | In-stock / Made to Order | 
Technical Parameters
| Parameter | Details | 
|---|---|
| Strength Grade | Equivalent to Grade 8.8 to 12.9 | 
| Tensile Strength | ≥960 MPa (Monel K-500-specific) | 
| Surface Finish | Natural, Passivated, Polished | 
| Heat Resistance | Up to 600°C (1112°F) | 
| Standards Compliance | DIN 933 / DIN 931 / ISO 4014 / ASTM B865 | 
| Certifications | ISO9001, CE, RoHS | 
Material & Manufacturing Process
The High-Temperature Monel K-500 Hex Head Bolt is manufactured using Monel K-500, a nickel-copper alloy with aluminum and titanium additions, which enhances strength and maintains excellent corrosion resistance, particularly in saltwater environments.
Typical Manufacturing Process:
- Raw Material Inspection (Monel K-500 alloy bar)
 - Cold Heading / Hot Forging into Hex Bolt Shape
 - Solid Solution Annealing & Age Hardening Process
 - Precision Thread Rolling
 - Surface Passivation or Special Finishing
 - Dimensional and Quality Inspection
 - Packaging for Shipment
 
Advantages of Monel K-500:
- Outstanding corrosion resistance in marine and chemical exposure
 - Excellent mechanical properties at both ambient and elevated temperatures
 - Non-magnetic and spark-resistant
 
Application Fields of Monel K-500 Hex Head Bolt
These bolts are designed for demanding applications across numerous industrial sectors:
- Marine and Offshore Engineering
 - Chemical and Petrochemical Plants
 - Aerospace and Aircraft Engineering
 - Nuclear and Power Generation Facilities
 - Oil and Gas Exploration
 - High-temperature Furnaces and Equipment
 - Pump and Valve Assembly
 - Defense and Military Hardware
 
Key Benefits of High-Temperature Monel K-500 Hex Head Bolts
High-Temperature Monel K-500 Hex Head Bolt Advantages
- Premium raw materials: We utilize authentic Monel K-500 bars with traceable quality sources.
 - Precision manufacturing: Tight tolerance control ensures high-grade threading and dimensional stability.
 - Superior thermal and corrosion performance: Ideal for hostile and extreme environments.
 - Wide customization: We accept OEM/ODM orders based on drawings or customer specifications.
 - Ample inventory and rapid delivery: Efficient production and logistics meet urgent project needs.
 - Reliable after-sales service: Technical guidance and customer support throughout the project lifecycle.
 
Inspection & Quality Assurance
Every batch of High-Temperature Monel K-500 Hex Head Bolt undergoes a thorough quality management process:
- 100% dimensional inspection using calibrated gauges.
 - Thread compliance testing with GO/NO-GO gauges.
 - Mechanical testing: tensile strength, yield, and elongation.
 - Advanced corrosion resistance verification: Salt Spray (NSS) test.
 - Quality certification: ISO 9001, IATF 16949-compliant systems.
 - Final packaging only after meeting all quality standards.
 
Conclusion & Company Overview
At Flybear Fastener, we are committed to delivering exceptional value and performance through our Monel K-500 Hex Head Bolts and other premium-grade fastener products. We offer end-to-end solutions tailored to each application’s requirements, from material selection to delivery logistics.
We always uphold our philosophy: “Quality First, Customer-centric Service”. To explore more options or discuss industrial specifications, feel free to contact us for expert consultation and customized quotes.








