Comprehensive Technical Overview of Brass Hex Nuts
We are one of the leading manufacturers and exporters of Brass Hex Nuts, Brass Hexagon Nuts, and Electrical Brass Fasteners from India. We have been supplying high-quality Brass Hex Nuts, Heavy Hex Nuts, Jam Nuts, Machine Screw Nuts, Electrical Brass Nuts, Custom Hex Nuts, and Special Application Brass Nuts to the world market for many decades. Our state-of-the-art manufacturing facility specializes in producing premium Brass Hex Nut Systems using advanced copper alloy formulation, precision hot forging, cold forming technology, CNC machining, heat treatment processes, surface finishing, automated assembly, quality testing, and comprehensive quality assurance systems. With over three decades of global experience in Brass Hex Nut manufacturing, we serve diverse industries including electrical equipment manufacturing, plumbing systems, automotive components, marine hardware, industrial machinery, pump and valve manufacturing, and general engineering applications. Our expertise encompasses working with various brass alloys including Free Cutting Brass (C36000), Architectural Brass (C38500), Naval Brass (C46400), Leaded Brass (C35300), and DZR Brass (CW602N). We manufacture Brass Hex Nuts in sizes from M2 to M30, thread pitches including metric, UNC, UNF, and BSP, maintaining excellent corrosion resistance, good electrical conductivity, compliance with ISO 4032, DIN 934, ANSI B18.2.2, ASTM B16 standards, and reliable performance in various applications.
Types of Brass Hex Nuts
Standard Brass Hex Nuts
General Purpose Hex Nuts with standard hexagon profile, featuring precision-cut threads and smooth surfaces. Available in sizes from M2 to M20 with various thread pitches. These Universal Hex Nuts provide reliable fastening for electrical applications, plumbing fittings, machinery assemblies, and general hardware applications where corrosion resistance and conductivity are important.
Heavy Brass Hex Nuts
Thick Pattern Hex Nuts with increased height and larger bearing surface, featuring enhanced load distribution and higher torque capabilities. Sizes from M8 to M30 with robust construction. These High-Strength Hex Nuts are essential for structural applications, heavy machinery, high-pressure systems, and load-bearing assemblies where maximum mechanical reliability is required.
Jam Brass Hex Nuts
Thin Pattern Hex Nuts with reduced height profile, featuring space-saving design and secondary locking capability. Available in sizes from M3 to M16 with standard thread pitches. These Locking Nuts are designed for tight spaces, double-nut locking systems, adjustable assemblies, and applications requiring minimal clearance.
Machine Screw Brass Hex Nuts
Precision Hex Nuts for smaller diameter fasteners, featuring fine threads and exact dimensions. Sizes from M2 to M12 with precise manufacturing tolerances. These Small Size Nuts are crucial for electronic equipment, instrumentation, precision mechanisms, and delicate assemblies where accuracy and reliability are critical.
Electrical Brass Hex Nuts
Electrically Conductive Hex Nuts with optimized electrical properties, featuring smooth current transfer and secure connections. These Electrical Grade Nuts provide reliable electrical connections for busbar systems, grounding applications, electrical enclosures, and power distribution equipment where electrical continuity is important.
Material Specifications & Properties
Brass Alloy Composition & Mechanical Properties
| Alloy Type | Composition | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Rockwell Hardness |
|---|---|---|---|---|---|
| Free Cutting Brass C36000 | 61.5% Cu, 35.5% Zn, 3% Pb | 340-420 | 170-200 | 25-35 | B78-B85 |
| Architectural Brass C38500 | 57-60% Cu, 35.5-40.5% Zn, 2.5-3.5% Pb | 380-450 | 160-190 | 30-40 | B70-B80 |
| Naval Brass C46400 | 60% Cu, 39.25% Zn, 0.75% Sn | 380-480 | 170-210 | 25-35 | B75-B85 |
| DZR Brass CW602N | 58-60% Cu, 36-38% Zn, 1.6-2.5% Pb | 400-500 | 180-220 | 20-30 | B80-B90 |
Performance Specifications & Standards
| Parameter | Standard Grade | Heavy Pattern Grade | Marine Grade | Test Standard |
|---|---|---|---|---|
| Proof Load | 250-600 MPa | 400-800 MPa | 350-700 MPa | ISO 898-2 |
| Torque Strength | 0.5-150 Nm | 5-300 Nm | 3-250 Nm | DIN 267 |
| Bearing Pressure | 100-400 N/mm² | 150-500 N/mm² | 120-450 N/mm² | ISO 898-2 |
| Corrosion Resistance | 500 hours | 750 hours | 1000+ hours | ASTM B117 |
Manufacturing Excellence
Advanced Manufacturing Process
Hot Forging Technology: Precision hot forging for superior grain structure and mechanical properties
Cold Forming Process: Multi-stage cold forming for dimensional accuracy and surface finish
CNC Machining: Precision threading and finishing operations
Heat Treatment: Stress relief annealing for optimal mechanical properties
Surface Treatment: Electroplating, polishing, and special coatings
Quality Testing: 100% dimensional, visual, and thread inspection
Quality Assurance Protocols
Raw Material Testing: Spectrochemical analysis for alloy composition verification
Dimensional Control: Optical comparator inspection with statistical process control
Mechanical Testing: Torque testing, tensile testing, and hardness testing
Thread Verification: Go/No-Go gauge testing for thread accuracy
Surface Quality: Visual inspection for defects and surface finish
Performance Validation: Salt spray testing, torque-tension testing, and load testing
Technical Specifications & Performance Data
Dimensional Specifications & Torque Values
| Nut Size | Thread Pitch | Across Flats | Height | Proof Load | Recommended Torque | Weight (g) |
|---|---|---|---|---|---|---|
| M2 | 0.4mm | 4mm | 1.6mm | 600 N | 0.2-0.3 Nm | 0.1 |
| M3 | 0.5mm | 5.5mm | 2.4mm | 1200 N | 0.5-0.7 Nm | 0.3 |
| M4 | 0.7mm | 7mm | 3.2mm | 2500 N | 1.5-2.0 Nm | 0.8 |
| M5 | 0.8mm | 8mm | 4.0mm | 4000 N | 3.0-4.0 Nm | 1.5 |
| M6 | 1.0mm | 10mm | 5.0mm | 6000 N | 5.0-7.0 Nm | 2.8 |
| M8 | 1.25mm | 13mm | 6.5mm | 10000 N | 12-16 Nm | 6.5 |
| M10 | 1.5mm | 17mm | 8.0mm | 16000 N | 24-30 Nm | 12.5 |
| M12 | 1.75mm | 19mm | 10.0mm | 23000 N | 40-50 Nm | 20.5 |
| M16 | 2.0mm | 24mm | 13.0mm | 42000 N | 90-110 Nm | 48.0 |
| M20 | 2.5mm | 30mm | 16.0mm | 65000 N | 150-180 Nm | 92.0 |
Thread Specifications & Compatibility
| Thread Type | Standard | Thread Angle | Pitch | Tolerance Class | Applications |
|---|---|---|---|---|---|
| Metric Coarse | ISO 261 | 60° | Standard | 6H | General Purpose |
| Metric Fine | ISO 965 | 60° | Fine | 6H | Precision Instruments |
| UNC | ANSI B1.1 | 60° | Coarse | 2B | North American |
| UNF | ANSI B1.1 | 60° | Fine | 2B | Precision Mechanical |
| BSP | ISO 228 | 55° | Whitworth | B | Plumbing/Piping |
Surface Finishes & Coatings
Available Finishes & Specifications
| Finish Type | Thickness | Salt Spray Resistance | Appearance | Applications |
|---|---|---|---|---|
| Natural Brass | N/A | 96 hours | Golden Yellow | Indoor, General |
| Polished Brass | N/A | 96 hours | Mirror Finish | Decorative, Marine |
| Nickel Plated | 5-15μm | 200-300 hours | Silver White | Industrial, Automotive |
| Chrome Plated | 10-20μm | 300-500 hours | Bright Silver | Marine, Automotive |
| Tin Plated | 3-10μm | 150-200 hours | Dull Silver | Electrical, Food Grade |
| Passivated | 0.5-2μm | 150 hours | Dark Yellow | Corrosion Protection |
International Standards & Certifications
Global Compliance & Approvals
ISO 4032: Hexagon nuts, style 1 – Product grades A and B
DIN 934: Hexagon nuts with metric coarse and fine pitch thread
ANSI B18.2.2: American standard for nuts
ASTM B16: Standard specification for free-cutting brass rod, bar, and shapes
RoHS Compliance: Restriction of hazardous substances
REACH Compliance: European chemicals regulation
Testing & Certification Standards
Mechanical Testing: Torque testing per ISO 898-2
Corrosion Testing: Salt spray testing per ASTM B117
Dimensional Inspection: Thread gauging per ISO 1502
Load Testing: Proof load testing per ISO 898-2
Material Certification: Mill certificates with full traceability
Industry Applications
Electrical & Electronics
Control Panels: Secure fastening in electrical enclosures
Busbar Systems: Electrical connections and supports
Grounding Applications: Reliable connections in earthing systems
Circuit Breakers: Secure fastening in electrical equipment
Plumbing & HVAC
Pipe Fittings: Corrosion-resistant connections in plumbing systems
Valve Assemblies: Secure fastening in valve bodies
Pump Connections: Reliable fastening in pumping systems
HVAC Equipment: Corrosion-resistant fastening in air handling units
Marine & Offshore
Boat Fittings: Corrosion-resistant fastening in marine environments
Offshore Platforms: Reliable fastening in saltwater conditions
Dock Equipment: Durable fastening in waterfront applications
Navigation Equipment: Secure fastening in marine electronics
Installation Guidelines & Maintenance
Professional Installation Procedure
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Thread Preparation: Clean mating threads and verify compatibility
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Nut Selection: Choose appropriate size and grade for application requirements
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Hand Tightening: Start threads carefully to prevent cross-threading
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Torque Application: Use calibrated torque wrench with specified values
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Bearing Surface Check: Ensure proper contact with mating surface
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Final Inspection: Verify proper seating and thread engagement
Maintenance Best Practices
Regular Inspection: Visual inspection for corrosion, damage, or loosening
Torque Verification: Periodic torque check in critical applications
Corrosion Monitoring: Regular assessment in harsh environments
Surface Cleaning: Appropriate cleaning methods for different finishes
Replacement Schedule: 20+ year service life with proper installation
Frequently Asked Questions
Q1: What are the advantages of brass hex nuts over steel nuts?
Brass hex nuts offer superior corrosion resistance, excellent electrical conductivity, non-magnetic properties, natural antimicrobial characteristics, and better compatibility with different materials. They are ideal for applications where corrosion resistance and electrical properties are important.
Q2: Can brass hex nuts be used in high-temperature applications?
Standard brass hex nuts are rated for continuous service from -40°C to 120°C. For higher temperature applications up to 200°C, we recommend our naval brass or special high-temperature alloys with appropriate heat treatment.
Q3: What is the difference between standard and heavy hex nuts?
Heavy hex nuts have larger dimensions across flats and greater height compared to standard hex nuts, providing higher load-bearing capacity, better torque capability, and improved resistance to stripping or rounding during installation.
Q4: Do you provide hex nuts with left-hand threads?
Yes, we manufacture brass hex nuts with left-hand threads in most standard sizes. Custom thread specifications including left-hand, special pitches, and non-standard diameters are available with minimum order quantities.
Q5: What is the expected service life of your brass hex nuts?
Our brass hex nuts have a service life expectancy of 20+ years in standard applications and 15+ years in harsh environments when properly installed and maintained, depending on the specific alloy and environmental conditions.
Q6: What testing do you perform on finished hex nuts?
We perform 100% dimensional inspection, thread gauge verification, visual examination, and sample mechanical testing. Additionally, we conduct corrosion testing, load testing, torque-tension testing, and material verification for quality assurance.
Contact Us Today – Request Quote for Brass Hex Nuts
Ready to discuss your Brass Hex Nut requirements for electrical applications, plumbing systems, marine hardware, or custom fastening solutions?
Request a Quote: Send your specifications including nut size, thread type, pattern type, material grade, finish, quantity, and application details to sales@jambrass.com for a detailed quotation within 24 hours.
Technical Support: Email your application requirements or technical drawings for nut selection guidance, material recommendation, and finishing assistance.
Call Us: +91-22-43449300 / +91-22-43449323 (Monday-Friday, 9:00 AM – 6:00 PM IST)
Office Address: 1406, 14th Floor, Dalamal Tower, Nariman Point, Mumbai – 400021, Maharashtra, INDIA
Factory Address: Plot 10B, GIDC Industrial Estate, Shanker Tekari, Udyognagar, Jamnagar, Gujarat, India – 361004
Contact Person: Mr. Mehul Vora
Email: sales@jambrass.com
