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Thread Plug Gauge

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Set of 7 piece
₹10,973   ₹11,181
You save ₹208!
1.86% OFF
Insize Class 6H Metric Threaded Plug Gage Set, 4130-S7 (Set of 7 Pcs) is a collection of precision measuring tools designed to check and verify the accuracy of threaded holes in machined parts with metric thread specifications. These gage sets are essential for quality control and ensuring that metric threads meet specified standards and tolerances. Here's a detailed explanation:
Purpose: The primary purpose of a metric threaded plug gage set is to assess the quality and precision of metric threaded holes in machined components. It ensures that the threads are correctly sized, aligned, and within the specified tolerances.
Thread Type: Metric threaded plug gage sets are specifically designed for metric thread types, which adhere to the ISO metric thread standard. Metric threads use the millimeter as their unit of measurement and follow a defined thread pitch and profile.
Construction: These gage sets are typically made from high-quality tool steel or tungsten carbide. Each gage in the set consists of a threaded plug or ring with precision-ground threads that match the metric thread specifications. The plugs are often mounted on handles or shanks for ease of use.
Set Configuration: A metric threaded plug gage set typically includes multiple plug gages, each representing a different metric thread size and pitch. The set may cover a range of thread sizes to accommodate various machining requirements.
Thread Verification: When using a metric threaded plug gage set, the appropriate gage is inserted into the threaded hole being inspected. The gage's dimensions and alignment are compared to the engineering drawing or thread standards to determine if the thread conforms to the specified tolerances.
Go and No-Go Gages: Like other thread gage sets, metric threaded plug gage sets often include both "go" and "no-go" gages. The "go" gage ensures that the threads meet the minimum acceptable dimensions, while the "no-go" gage checks if the threads exceed the maximum acceptable dimensions.
Tolerances: Metric threaded plug gages are manufactured with precise tolerances to guarantee accuracy in thread inspection. They are designed to quickly and accurately identify whether a threaded hole falls within the acceptable tolerance range.
Applications: Metric threaded plug gage sets are widely used in industries where metric threads are common, such as manufacturing, automotive, aerospace, and mechanical engineering. They are critical tools for ensuring the reliability and functionality of threaded connections in various applications.
Maintenance: Regular calibration and maintenance of metric threaded plug gage sets are essential to ensure their accuracy and reliability. Calibration checks confirm that the gages provide accurate measurements.
In summary, a metric threaded plug gage set is a specialized collection of measuring tools used to evaluate and confirm the precision of metric threaded holes in machined components. These gage sets are crucial for quality assurance and verifying that metric threads meet the specified standards and tolerances, contributing to the integrity and performance of various products and systems.
Set of 7 piece
₹11,799 - ₹12,979
You save ₹289!
2.39% OFF
The Insize Class 6G Metric Thread Ring Gage Set, 4120 Series, is a high-precision toolset designed for quality control and inspection of external threads. This set includes seven pieces, each engineered to verify the accuracy and consistency of metric threads in manufacturing processes. The gages are crafted to meet the stringent standards of the 6G tolerance class, ensuring that threads conform to specified dimensions and tolerances. Constructed from durable, wear-resistant materials, these gages provide long-lasting performance and reliability. Each ring gage is clearly marked with its size and tolerance class for easy identification and use. The set is suitable for a wide range of applications in industries such as automotive, aerospace, and mechanical engineering, where precise thread measurement is crucial. The 4120 Series gages are calibrated to deliver exceptional accuracy, minimizing the risk of thread-related issues in assembled products. This comprehensive set is ideal for inspection rooms, manufacturing plants, and quality assurance departments, offering a dependable solution for maintaining thread quality and ensuring compatibility with mating parts. Packaged in a sturdy case, the set is easy to store and transport, providing convenience and organization for users.
green checkClass : 6G
green checkShape : Round
green checkStandard : ISO1502
green checkColor : Silver
₹3,665  
Insize American Standard Thread Plug Gauge Go and No Go, 2B Class, ANSI/ASME B1.2 and Size 3/8 -16 UNC, 4131-3C1 is designed for precise inspection of internal unified fine threads in high-accuracy manufacturing environments. Manufactured in accordance with ANSI/ASME B1.2 standards, this gauge ensures reliable verification of thread size, pitch, and tolerance limits for 2B class internal threads. The Go gauge checks maximum material condition, while the No Go gauge confirms minimum material condition, helping operators quickly identify out-of-tolerance components. Its hardened steel construction provides excellent wear resistance, dimensional stability, and long service life, even under frequent use in quality control operations. Insize American Standard Thread Plug Gauge Go and No Go, 2B Class, ANSI/ASME B1.2 and Size 3/8 -16 UNC, 4131-3C1 is ideal for use in precision engineering, aerospace, automotive, and electronics manufacturing where fine threads are critical. The clearly marked Go and No Go ends reduce inspection errors and improve productivity on the shop floor. This plug gauge supports consistent thread acceptance decisions without the need for complex measuring equipment, making it a dependable tool for both in-process and final inspection. Its compact design allows easy handling, while strict adherence to international standards ensures compatibility with globally manufactured threaded components.
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Top Selling Thread Plug Gauge Products Price List for April 2026

Product Name Specifications Expected Price Dispatch Time Discount
Baker NPT Taper Thread Plug Gauge Basic Step 50 mm (2 inch) 11.1/2 TPI Hand Type Right Hand | Nominal Diameter 2 inch ₹8,141 10 days 1.02% OFF
Baker NPT Taper Thread Plug Gauge Basic Step 75 mm (3 inch) 8 TPI Hand Type Right Hand | Nominal Diameter 3 inch ₹9,911 10 days 2.56% OFF
Baker NPT Taper Thread Plug Gauge Basic Step 19.05 mm (3/4 inch) 14 TPI -- ₹4,011 10 days 0.9% OFF
Baker Unified Thread Plug Gauge 2B Class D/E GO & NOT GO 25.40 mm (1 inch) Dia 12 UNF Thread Class 2B | Hand Type Right Hand ₹3,775 10 days --
Baker NPT Taper Thread Plug Gauge Min & Max Step 6.35 mm (1/4 inch) 18 TPI -- ₹4,483 10 days --
Baker Thread Plug Gauge 6H Class Right Hand S/E GO & NOT GO 115 mm Nominal Dia 1.5 mm Pitch Class 6H | Hand Type Right Hand ₹14,159 4 days --
Baker Thread Plug Gauge 6H Class Right Hand D/E GO & NOT GO 10 mm Nominal Dia 1.25 mm Pitch Class 6H | Hand Type Right Hand ₹2,241 10 days --
Baker Thread Plug Gauge 6H Class Right Hand D/E GO & NOT GO 12 mm Nominal Dia 1 mm Pitch Class 6H | Hand Type Right Hand ₹2,241 10 days --
Baker Unified Thread Plug Gauge 2B Class D/E GO & NOT GO 15.88 mm (5/8 inch) Dia 11 UNC Thread Class 2B | Hand Type Right Hand ₹4,365 10 days 1.09% OFF
This data was last updated on 30/04/2026

Read All About Thread Plug Gauges Here

thread gauge is a precision measuring instrument used to measure the pitch or lead of a screw thread. It is an essential tool in manufacturing and mechanical engineering, where precise measurements are crucial for ensuring the proper function of threaded parts. They come in different shapes and sizes, and they are designed to measure various aspects of screw pitch gauge, including thread diameter, thread pitch, thread angle, and thread height.

These measurements are critical for ensuring that threaded parts fit and function correctly, and they help to maintain the overall quality of the manufacturing process. Check out the new range of dimension measurement kits and other related tools like flow meters that are related to these types of gauges. They are widely used in industries such as aerospace, automotive, and machinery manufacturing, where accurate thread measurement is essential.

 

Why are they important in manufacturing and mechanical engineering?

Thread gauge plug is an essential tool for measuring screw thread gauge dimensions in manufacturing and mechanical engineering. The following significant reasons in manufacturing and mechanical engineering are:

i) Accurate thread measurement: They provide precise measurements of thread dimensions, ensuring that threaded parts are manufactured to exact specifications.
ii) Quality control: They help to maintain the quality of the manufacturing process by ensuring that threaded parts meet the required standards.
iii) Versatile: They can be used to measure different thread types and sizes, making them a versatile tool in manufacturing and mechanical engineering.
iv) Time-saving: They provide quick and easy measurements, saving time in the manufacturing process.  Whether it's a thread pitch gauge, thread plug, thread ring, or any other type of tool, they are crucial for ensuring that threaded parts fit and function correctly.
v) Cost-effective: They are cost-effective and can be used repeatedly without requiring calibration.

Depth Gauge and other useful tools in manufacturing and mechanical engineering for measuring depth and dimensions, respectively. 

How does a Thread Plug Gauge work?

Here are some ways in which they work:

1. Measurement: It is a tool with a series of notches or steps that correspond to specific thread sizes. To use it, you insert the gauge into the threaded part and compare the notches or steps to the thread, determining the size and pitch of the thread. This is typically done with gauge-plug for internal threads and thread ring for external threads.
2. Verification of thread specifications: They are used to verify that threaded parts meet the required specifications. If the thread pitch, diameter, or other dimension does not match the required specifications, adjustments can be made to ensure that the part is within tolerance.
3. Visual inspection: In addition to measuring the dimensions of a thread, they can also be used for visual inspection. By comparing the thread to the notches or steps on the gauge, you can quickly determine if the thread is in the correct position and if there are any irregularities or deformities in the thread.

Thread gauge plugs can be used with a variety of measuring tool accessories helping you to bring out your desired result.

Where can you use a Thread Plug Gauge?

It is an essential tool used in many applications for measuring the dimensions of screw threads. Here are some common places where you can use them:

a) Manufacturing: They are used extensively in manufacturing to ensure that the threaded parts meet the required specifications. This includes the aerospace, automotive, and machinery industries, among others. Whether you need to measure the pitch, diameter, or other dimensions of a thread, the tool can help you get accurate results. Feeler gauges are used to measure gaps and clearances between parts.
b) Mechanical Engineering: They are also used in mechanical engineering for a variety of applications. This includes designing, assembling, and maintaining machinery and equipment. They can help ensure that the threaded components are in the correct position and meet the necessary specifications.
c) Repair and maintenance: When repairing or maintaining equipment, they can be useful for identifying the thread sizes and pitches in the threaded parts. This helps to ensure that the replacement parts fit correctly and function as intended.
d) Construction:  In the construction industry, they can be used to measure thread sizes in various types of screws and bolt and thread gauge tool. This helps ensure that the correct parts are used and that the construction is structurally sound.

Who can benefit from using them?

It is a versatile tool that can be beneficial to many different people and industries.

a) Manufacturers: They are essential tools for manufacturers who produce threaded parts. By using the tool, manufacturers can ensure that the parts meet the required specifications and are of the correct size and shape. This can help ensure that the final products function correctly and are safe to use.
b) Mechanics and technicians: Mechanics and technicians who work with machinery, engines, or other threaded components can benefit from using them. By using this tool, they can identify the thread sizes and pitches in the parts they are working with, which can be useful for repairing and maintaining equipment.
c) Engineers: Engineers who design machinery, equipment, and other products that involve threaded parts can benefit from using them during the design process. By using this tool, they can ensure that the parts are designed to the correct specifications and will function as intended.
d) Construction professionals: Construction professionals who work with screws, bolt thread gauge and other threaded components can benefit from using them to measure thread sizes and pitches. This can help ensure that the correct parts are used and that the construction is structurally sound.

Choose the suited data loggers and store the data for future analysis.
Get your hands on this tool at a budget-friendly thread plug gauge price only on Industrybuying and enjoy all the advantages it comes with.
 

How do you properly use them?

Using the thread gauge plug is crucial for ensuring accurate and consistent measurements of threaded objects.
Here are some steps to follow when using this tool:

i) Identify the type of thread you need to measure, they come in different shapes and sizes to accommodate different types of threads.
ii) Select the appropriate tool for the thread you need to measure, such as a pitch gauge, thread plugs, or thread ring.
iii) Hold the tool against the threaded object and align the gauge with the thread.
iv) Use the gauge to determine the pitch, diameter, and other measurements of the thread.
v) If using a thread plugs, insert the gauge into the threaded hole and turn it until it fits snugly.
vi) If using a thread ring gauge, place the gauge over the threaded object and turn it until it fits securely.
vii) Take multiple measurements to ensure accuracy, and repeat the process for each threaded object.

Where can you find calibration services for Thread Plug Gauge?

a) Authorized Service Centers: Many manufacturers of them have authorized service centers that can provide calibration services. These centers have trained professionals and specialized equipment to ensure that your gauges are calibrated accurately.
b) Local Calibration Labs: There are many local calibration labs that can provide calibration services for them. These labs have skilled technicians and calibrated equipment to ensure that your gauges are performing within acceptable tolerances.
c) Online Calibration Services: Many online calibration services can provide calibration services for them. These services typically allow you to ship your thread plug gauge set to them for calibration, and they will return them once the calibration is complete. However, it's essential to ensure that the online calibration service has the necessary certifications and accreditations to ensure the quality of their work.

Explore our website and come across a range of these useful tool at best-in-market thread plug gauge prices on our website and enjoy quality assurance along with cost-effectiveness. You can also choose to buy measuring tool set which has all the essential tools at one place.