

1. Brass Lock Nuts – Metric Threads (DIN Standard)
(Commonly per DIN 439 / DIN 936 – Brass thin hex lock nuts)
Brass Metric Lock Nut Size Chart
| Thread (M) | Pitch (mm) | Across Flats (s) mm | Thickness (m) mm | Typical DIN |
|---|---|---|---|---|
| M3 | 0.50 | 5.5 | 2.0 | DIN 439 |
| M4 | 0.70 | 7.0 | 2.2 | DIN 439 |
| M5 | 0.80 | 8.0 | 2.7 | DIN 439 |
| M6 | 1.00 | 10.0 | 3.2 | DIN 439 |
| M8 | 1.25 | 13.0 | 4.0 | DIN 439 |
| M10 | 1.50 | 17.0 | 5.0 | DIN 439 |
| M12 | 1.75 | 19.0 | 6.0 | DIN 439 |
| M14 | 2.00 | 22.0 | 7.0 | DIN 439 |
| M16 | 2.00 | 24.0 | 8.0 | DIN 439 |
| M18 | 2.50 | 27.0 | 9.0 | DIN 439 |
| M20 | 2.50 | 30.0 | 10.0 | DIN 439 |
Material: Brass (CZ121 / C36000 typical)
Finish: Natural, Nickel plated, Tin plated (optional)
2. Brass Panel Nuts – UNEF Threads
(Used in electrical panels, cable glands, conduit fittings, switchgear)
Brass UNEF Panel Nut Size Chart
| Thread Size (UNEF) | TPI | Major Ø (in / mm) | Across Flats (mm) | Thickness (mm) |
|---|---|---|---|---|
| 3/8″-32 UNEF | 32 | 0.375 / 9.53 | 19 | 4.0 |
| 7/16″-28 UNEF | 28 | 0.4375 / 11.11 | 22 | 4.5 |
| 1/2″-28 UNEF | 28 | 0.500 / 12.70 | 24 | 5.0 |
| 9/16″-24 UNEF | 24 | 0.5625 / 14.29 | 27 | 5.0 |
| 5/8″-24 UNEF | 24 | 0.625 / 15.88 | 30 | 5.5 |
| 3/4″-20 UNEF | 20 | 0.750 / 19.05 | 36 | 6.0 |
| 7/8″-20 UNEF | 20 | 0.875 / 22.23 | 41 | 6.5 |
| 1″-20 UNEF | 20 | 1.000 / 25.40 | 46 | 7.0 |
Common Use:
• Electrical panel mounting
• Cable glands & accessories
• Junction boxes & switchgear
Material: Brass (CZ121 / C36000 / IS 319 Type I)
Optional Features: Knurled OD, chamfered edges, custom thickness
Brass Panel Nuts – Precision Machined Electrical & Industrial Fastening Solutions
Brass Panel Nuts Manufacturer & Exporter
Brass Panel Nuts are precision-machined threaded fasteners used extensively for mounting, locking, and securing components on electrical panels, control enclosures, junction boxes, instrumentation panels, switchgear assemblies, and earthing systems. Manufactured from high-conductivity and corrosion-resistant Brass alloys, these nuts provide excellent electrical performance, mechanical strength, and long service life even in demanding industrial environments.
We manufacture and supply a comprehensive range of Brass Panel Nuts, Brass Lock Nuts, Brass Hex Panel Nuts, Metric and Imperial Panel Nuts (UNC / UNEF) in compliance with DIN, ISO, ASTM, and customer-specific drawings, with optional surface finishes including Nickel Plating for enhanced durability and aesthetics.
What Are Brass Panel Nuts?
Brass Panel Nuts are threaded fastening components designed specifically to secure accessories—such as cable glands, terminals, bushings, studs, and connectors—onto metal or non-metal panels. Their wide bearing surface distributes load evenly, prevents loosening, and protects panel surfaces from damage.
Key Functional Advantages
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Excellent electrical conductivity
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High resistance to corrosion, moisture, and oxidation
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Non-sparking and non-magnetic
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Good machinability for tight tolerances
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Long life under thermal and mechanical stress
Typical applications include:
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Electrical panels & control cabinets
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Switchgear & transformer assemblies
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Cable gland locking systems
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Instrumentation panels
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Earthing & grounding hardware
Brass Lock Nuts
Brass Lock Nuts are designed to prevent loosening due to vibration, thermal cycling, or repeated mechanical stress. They are widely used in electrical enclosures, cable gland assemblies, and precision equipment where secure retention is critical.
Features of Brass Lock Nuts
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Reduced thickness for tight space constraints
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Excellent locking performance on threaded components
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Compatible with Brass cable glands and accessories
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Available in Metric, UNC, and UNEF threads
These nuts are commonly used in panel-mounted cable glands, where reliable locking and grounding continuity are essential.
Brass Hex Panel Nuts
Brass Hex Panel Nuts feature a six-sided profile that allows easy tightening using standard spanners or sockets. The hexagonal design ensures superior torque transmission and repeatable installation accuracy.
Advantages
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Easy installation and removal
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Uniform load distribution
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Suitable for automated assembly lines
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Available in standard and custom across-flat sizes
Brass Hex Panel Nuts are preferred in industrial electrical assemblies where controlled tightening torque and maintenance accessibility are required.
Brass UNEF and UNC Panel Nuts
We manufacture Brass Panel Nuts in UNEF (Unified National Extra Fine) and UNC (Unified National Coarse) threads to meet North American and international OEM requirements.
Brass UNC Panel Nuts
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Coarse thread profile
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Higher tolerance to dirt and damage
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Faster assembly
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Ideal for general industrial use
Brass UNEF Panel Nuts
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Extra-fine thread pitch
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Superior vibration resistance
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Higher clamping force per turn
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Commonly used in precision electrical fittings and aerospace-inspired designs
Both thread types are manufactured as per ASME / ANSI standards, ensuring full interchangeability and dimensional accuracy.
Brass Metric Panel Nuts
Brass Metric Panel Nuts are produced according to ISO Metric standards and are widely used across Europe, Asia, and global electrical markets.
Specifications
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Thread sizes: M3 to M100 (and beyond on request)
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Thread tolerance: ISO 6H / 6g or as specified
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Suitable for DIN-compliant cable glands and accessories
Metric Brass Panel Nuts are commonly supplied for DIN rail systems, control panels, distribution boards, and automation equipment.
Nickel Plated Brass Panel Nuts
Nickel Plated Brass Panel Nuts offer enhanced performance where aesthetics, corrosion resistance, and surface hardness are critical.
Benefits of Nickel Plating
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Superior resistance to oxidation and tarnishing
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Improved wear resistance
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Smooth, uniform silver finish
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Suitable for indoor and outdoor installations
Nickel plated variants are preferred in:
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High-humidity environments
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Marine and coastal installations
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Premium electrical enclosures
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Export markets requiring long shelf life
Plating thickness can be customized as per ASTM B689 / ISO standards.
Brass DIN 439 Brass Lock Nuts
Brass DIN 439 Lock Nuts are thin pattern hex nuts manufactured in accordance with DIN 439 / ISO 4035 standards.
Key Characteristics
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Reduced height compared to standard hex nuts
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Ideal for locking applications
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Excellent fit with metric threaded components
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Used extensively in electrical and mechanical assemblies
These nuts are commonly used as jam nuts, providing a secondary locking function to prevent loosening.
Material Grades Used
Our Brass Panel Nuts are manufactured from carefully selected Brass alloys, including:
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CW614N / CZ121
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CW617N
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C36000
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IS 319 Grade I / II
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Lead-free Brass grades available for RoHS & REACH compliance
Material traceability and chemical composition verification are provided on request.
Manufacturing & Quality Control
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Precision CNC turning and automatic machining
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In-process dimensional inspection
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Thread gauging (Go/No-Go)
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Surface finish and plating thickness checks
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Batch traceability with heat numbers
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Compliance with ISO 9001:2015 Quality Management System
Conclusion: Selecting Premium Brass Panel Nuts for Demanding Applications
Brass panel nuts deliver essential fastening performance across diverse industrial, electronics, automotive, and commercial applications requiring corrosion-resistant, electrically conductive, and reliable threaded fastening solutions. The comprehensive range of thread standards, locking mechanisms, surface finishes, and specialized configurations enables precise matching of fastener characteristics to application requirements, ensuring optimal performance throughout expected service life. Understanding the technical specifications, material properties, and application considerations outlined in this guide empowers engineers, purchasers, and assembly personnel to make informed decisions that enhance product quality, reduce maintenance requirements, and ensure long-term reliability of panel-mounted assemblies.
The selection between standard brass panel nuts, lock nuts with vibration resistance, hexagonal configurations for tool engagement, unified versus metric thread specifications, and surface finishing options should be guided by comprehensive evaluation of mechanical loading, environmental exposure, electrical requirements, assembly constraints, and cost considerations. Quality brass panel nuts manufactured to recognized standards, supplied with appropriate material certifications, and installed following recommended procedures provide dependable service in applications ranging from consumer electronics to industrial control systems, telecommunications infrastructure to automotive assemblies.
Our extensive inventory of brass panel nuts encompasses the full spectrum of sizes, thread standards, and configurations discussed throughout this technical guide, ensuring availability of appropriate fasteners for your specific application requirements. Technical support services provide assistance with fastener selection, torque specifications, installation procedures, and troubleshooting to ensure successful implementation of brass panel nut solutions. Whether your application demands standard UNC threads for North American manufacturing, metric specifications for international compatibility, DIN 439 compliance for European standards, or nickel plated finishes for enhanced durability, our comprehensive product range and technical expertise deliver the brass panel nut solutions essential for demanding modern applications.
Why Choose us for Brass Panel Nuts?
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Decades of experience in Brass precision components
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Custom manufacturing as per drawings & samples
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Global export capability (USA, Europe, Middle East)
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Competitive pricing for bulk & OEM orders
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Reliable delivery timelines
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Technical support for design and material selection