Our comprehensive product portfolio includes a wide range of brass rods (including low-lead and lead-free grades), brass fittings, and pipe components, engineered for exceptional mechanical strength, corrosion resistance, and machinability across plumbing, HVAC, automotive, and industrial applications.
The NINGXING Electroplated Brass Thread Reducer Adapter is designed to connect components with different thread sizes or standards in electrical and industrial equipment. Made from brass with a nickel-plated surface, it provides a compact connection structure with good mechanical strength, corrosion resistance, and dimensional stability.
The Electroplated Brass Thread Reducer Adapter can be used for thread conversion between Metric, PG, NPT, and G/PF standards. Its hexagonal body provides a convenient wrenching surface, while precision-machined threads help achieve smooth engagement and reliable assembly.
Material and Finish
1. Brass Construction
The adapter is manufactured from quality brass, which offers good machinability, strength, corrosion resistance, and resistance to deformation during normal installation. Brass is suitable for control cabinets, machinery, automation equipment, cable entry systems, and other industrial applications.
2. Nickel Plating
The surface is treated with nickel electroplating to improve resistance to moisture, oxidation, wear, and general corrosion. The plated finish also provides a consistent metallic appearance. For applications involving salt spray or harsh outdoor environments, the required plating thickness and corrosion-resistance level can be specified before production.
Thread Selection
1. Common Thread Standards
NINGXING supports Metric, PG, NPT, and G/PF thread configurations. Customers should confirm both the thread standard and nominal size before ordering because threads with similar nominal dimensions may have different pitch or profile designs.
2. Size Matching
For example, when an equipment opening is M25×1.5 and the cable gland is M20×1.5, an M25 external thread to M20 internal thread configuration can be used. Providing the thread designation, drawing, or sample helps ensure accurate product selection.
Installation Guide
1. Before Installation
Clean the mating threads and remove dust, metal chips, oil, and other contaminants before assembly. Check that both threads are undamaged and correctly aligned to prevent cross-threading.
2. During Assembly
Install the adapter by hand first and then tighten it with a suitable wrench. Excessive torque should be avoided because it may deform the brass body or damage the threads. Where sealing is required, the appropriate sealing ring or thread-sealing method should be selected according to the application.
Product Testing
1. Dimensional Inspection
NINGXING checks critical dimensions including thread diameter, pitch, thread length, body dimensions, and other specified tolerances during production. CNC machining helps maintain consistency between batches.
2. Thread Inspection
Thread gauges and measuring equipment are used to verify thread profile, pitch, and engagement. Sample assembly with corresponding mating components can also be performed to confirm connection compatibility.
3. Surface Inspection
After nickel plating, products are checked for coating uniformity, visible surface defects, exposed brass, scratches, and other abnormalities. Additional plating-thickness or corrosion testing can be arranged according to project requirements.
Application Cases
1. Control Cabinet Installation
An automation equipment manufacturer found that its cable gland used an M20×1.5 thread while the control cabinet opening was M25×1.5. The customer used an Electroplated Brass Thread Reducer Adapter to connect the two interfaces without modifying the cabinet, reducing installation work and avoiding structural changes.
2. Marine Electrical Upgrade
A ship repair company needed to convert existing PG-thread cable interfaces to Metric connections during a cargo vessel electrical upgrade. NINGXING supplied PG21-to-M32 and PG29-to-M40 configurations with nickel-plated brass surfaces for several hundred interfaces, helping the customer complete the conversion within the planned installation schedule.
3. Industrial Robot Line
A robot system integrator was working with equipment using Metric, PG, and NPT thread standards. Different thread configurations of the Electroplated Brass Thread Reducer Adapter were used to match the existing interfaces, reducing the need for equipment modification and simplifying component installation.
Reference Specifications
The following dimensions are reference values for commonly used thread sizes. Actual dimensions may vary according to the thread standard and product configuration.
Size
Alias
Nominal Thread Size
Major Diameter (mm)
Minor Diameter (mm)
Thread Pitch (mm)
1 fen
DN6
G1/8
9.728
8.566
0.907
2 fen
DN8
G1/4
13.157
11.455
1.337
3 fen
DN10
G3/8
16.662
14.950
1.337
4 fen
DN15
G1/2
20.955
18.631
1.814
6 fen
DN20
G3/4
26.441
24.117
1.814
1 inch
DN25
G1"
33.249
30.291
2.309
1-1/4 inch
DN32
G1-1/4"
41.910
38.952
2.309
1-1/2 inch
DN40
G1-1/2"
47.803
44.845
2.309
2 inch
DN50
G2"
59.614
56.656
2.309
2-1/2 inch
DN65
G2-1/2"
75.184
72.226
2.309
3 inch
DN80
G3"
87.884
84.926
2.309
4 inch
DN100
G4"
113.030
110.070
2.309
Parameter Reference
Parameter
Reference
Material
Brass
Surface Finish
Nickel Electroplated
Thread Standards
Metric, PG, NPT, G/PF
Operating Temperature
-40℃ to +100℃
Short-Term Temperature
Up to +120℃
Manufacturing
CNC Machining
Customization
Available
Quality System
ISO 9001:2015
Compliance
CE, RoHS
Product Comparison
Item
Electroplated Brass Thread Reducer Adapter
Standard Brass Adapter
Plastic Thread Adapter
Material
Brass
Brass
Plastic
Surface Finish
Nickel Plated
Brass / Optional Protection
Polymer
Thread Conversion
Multiple Options
Common Model Dependent
Model Dependent
Mechanical Strength
High
High
Generally Lower
Corrosion Resistance
Improved by Plating
Good
Generally Good
Temperature Resistance
Material Dependent
Material Dependent
Model Dependent
Customization
Available
Available
Limited
Typical Use
Electrical & Industrial Equipment
General Connections
Lightweight Equipment
FAQ
What is the main purpose of this adapter?
It connects equipment or components with different thread sizes or thread standards, such as converting an M25 mounting opening to an M20 cable gland connection.
Which thread standards are available?
Metric, PG, NPT, and G/PF configurations are available. Customized thread combinations can also be produced according to drawings or samples.
What is the operating temperature?
The reference operating range is -40℃ to +100℃, with short-term exposure up to +120℃. The actual limit depends on the complete application and mating components.
Can it be used outdoors?
The nickel-plated surface improves resistance to moisture and general corrosion. For marine or high-salt environments, additional corrosion-resistance requirements should be confirmed before production.
Can NINGXING provide customized products?
Yes. NINGXING supports OEM and ODM production, including thread combinations, dimensions, thread lengths, surface finish, logo, and packaging.
What certifications are available?
NINGXING operates according to an ISO 9001:2015 quality management system, with applicable products meeting CE and RoHS requirements. Relevant documents can be provided according to the product specification.
OEM and Supply
NINGXING provides factory-direct production for standard and customized brass thread adapters. Customers can submit drawings, samples, thread specifications, or dimensional requirements for evaluation before production. Standard products and customized configurations can be arranged according to order quantity and delivery requirements.
With brass machining, nickel electroplating, thread inspection, and final quality control handled within the manufacturing process, NINGXING supplies connection components for automation equipment, control cabinets, machinery, cable entry systems, marine electrical equipment, and industrial projects.
Need brass rods or custom fittings? Send your drawings or samples today. ISO9001 certified, RoHS & PED compliant. Get a fast, professional quote from our expert team. Inquire now!
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