Thread Plug Gauges

We are a Manufacturer of Thread Plug Gauges in India, used to check inside major diameter and pitch diameter limits on threaded parts. The gauges are manufactured as per ASME/ANSI standards. We have thread plug gauges in reversible, taper-lock, and tri-lock designs.

DIC Tools provides Thread Plug Gauges for automobiles, transportation, etc. The gauges are available in various specifications and can also be customized per our customers' specific requirements. We produce gauges using advanced technology with the best quality raw material.

These typically have multiple blades with teeth of a known lead and pitch. Thread Plug Gauges are also used to quickly verify thread on a gauge without the requirement of a full ring or plug. We are a reliable Thread Plug Gauges Supplier in India.

Technical Specification
Gauge Type	Go / No-Go Thread Plug Gauge
Thread Type	Metric (ISO), Unified (UNC / UNF / UNEF) or as required
Material	High Speed Steel (HSS) or Hardened Tool Steel
Size Range	M2 to M20 (Metric) #2 to 1" (Unified) or Custom
Tolerance Class	6H Metric or 2B Unified
Hardness	58 – 62 HRC
Standard	ISO, ANSI / ASME, DIN, BS
Surface Finish	Precision ground and lapped
Application	Inspection of internal threads for size, pitch, and functional accuracy
Customization	Special sizes, non-standard tolerances, coatings, markings, OEM branding

Precision Inspection for Internal Threads

Thread Plug Gauges manufactured by Dedicated Impex are produced to strict gauge maker’s tolerance, ensuring accurate inspection of internal threads for size, pitch, and functional fit across precision engineering applications.
Dedicated Impex Thread Plug Gauges are designed in Go and No-Go configurations, enabling fast and reliable pass/fail inspection on production floors without the need for complex measuring instruments.
Thread Plug Gauges are available in Metric, UNC, UNF, BSP, NPT, and other standard thread forms, supporting diverse domestic and international inspection requirements.
We use high-grade hardened tool steel for manufacturing Thread Plug Gauges, ensuring excellent wear resistance, long service life, and stable dimensional accuracy under repeated industrial use.
All measuring threads are precision ground and lapped to ensure smooth engagement, accurate contact with internal threads, and consistent inspection results throughout the gauge lifespan.
Each Thread Plug Gauge is clearly marked with size, pitch, tolerance class, and Go/No-Go identification, ensuring easy traceability and reducing inspection errors on shop floors.
Thread Plug Gauges are designed for easy handling and smooth insertion, allowing operators to perform continuous inspections comfortably on production floors.
Thread Plug Gauges supplied by Dedicated Impex are designed for smooth handling, easy insertion, and reduced operator fatigue during continuous production inspection.
Thread Plug Gauges are manufactured in accordance with ISO, ANSI, DIN, and BS standards, making them suitable for global quality systems and export-oriented manufacturing units.

Precision Gauges for Diverse Sectors

Dedicated Impex supplies Thread Plug Gauges for inspection of internal threads in engines, gearboxes, suspension parts, and safety-critical automotive components.
Thread Plug Gauges are used in aerospace and defense manufacturing where strict dimensional accuracy, repeatability, and compliance with international quality standards are essential.
Thread Plug Gauges support inspection of threaded valves, fittings, and pipeline components to ensure leak-free assembly and reliable field performance.
Used for inspecting internal threads in heavy machinery components, Thread Plug Gauges help maintain proper assembly and long-term operational reliability.
Dedicated Impex Thread Plug Gauges are applied in checking internal threads in hydraulic blocks, cylinders, and pneumatic fittings to maintain pressure integrity.
Thread Plug Gauges are used to inspect threaded holes in electrical enclosures, control panels, and precision housings for electronic equipment.
Dedicated Impex works closely with fastener manufacturers to supply Thread Plug Gauges for quality control of internally threaded fasteners and inserts.
Thread Plug Gauges are widely used in job shops and general engineering units for routine inspection and in-process quality control.
Thread Plug Gauges support first-article inspection, calibration reference checks, and final inspection in tool rooms and quality laboratories.
Dedicated Impex supplies Thread Plug Gauges to export-focused manufacturers requiring consistent quality and compliance with global inspection standards.

Your Brand Supported by Manufacturing Expertise

Dedicated Impex offers complete OEM and private label manufacturing of Thread Plug Gauges, enabling customers to market products under their own brand identity.
Thread Plug Gauges can be laser engraved with customer logos, brand names, part numbers, and traceability codes as per OEM branding requirements.
Dedicated Impex produces Thread Plug Gauges in special sizes, non-standard tolerances, and custom thread forms based on customer drawings or specifications.
OEM customers can choose customized packaging including branded boxes, labels, and export-ready protective packing for international shipments.
Dedicated Impex follows strict inspection procedures to ensure consistent dimensional accuracy and finish across all OEM-branded Thread Plug Gauge batches.
OEM branding services are available for both small trial orders and large-volume production, supporting distributors and global buyers alike.
Thread Plug Gauges manufactured under OEM branding are packed and documented to meet international export and customs requirements.
OEM customers benefit from stable repeatability in specifications, ensuring identical quality and performance across recurring Thread Plug Gauge orders.
Dedicated Impex maintains strict confidentiality of customer designs, drawings, and branding information throughout the OEM manufacturing process.
Dedicated Impex focuses on building long-term OEM relationships by delivering reliable Thread Plug Gauges, consistent quality, and responsive technical support.

Product FAQ's

1. Which industries use Thread Plug Gauges?

Thread Plug Gauges are widely used in automotive, aerospace, oil & gas, defense, heavy engineering, and precision machining industries. They are essential for internal thread inspection in CNC machining and component manufacturing units where strict quality control and dimensional accuracy are required.

2. What materials are Thread Plug Gauges made from?

Thread Plug Gauges are manufactured from high-grade hardened tool steel or stainless steel. The gauges are heat treated to achieve 58–62 HRC hardness, ensuring excellent wear resistance, dimensional stability, and long service life under repeated inspection use.

3. What thread standards are available in Thread Plug Gauges?

Thread Plug Gauges are produced according to ISO, ANSI / ASME, DIN, and BS standards. They support Metric (ISO), Unified (UNC, UNF, UNEF), BSP, BSPT, NPT, and other international thread forms to ensure global compatibility and industrial compliance.

4. What tolerance classes are available in Thread Plug Gauges?

Thread Plug Gauges are available in Metric tolerance classes such as 6H in metric Unified classes including 2B. Custom tolerance grades can also be manufactured as per specific application requirements.

5. What is the size range available in Thread Plug Gauges?

Thread Plug Gauges are available in sizes ranging from M2 to M20 in Metric standards and #2 to 1 inch in Unified standards. Custom sizes can also be manufactured to meet specific industrial and application requirements.

6. What is the function of Go / No-Go Thread Plug Gauges?

Go gauges check the maximum material condition of internal threads, ensuring proper functional fit. No-Go gauges verify the minimum material limit to prevent oversize threads. This Go/No-Go system ensures reliable and accurate thread inspection.

7. What surface finish is provided on Thread Plug Gauges?

Thread Plug Gauges are precision ground and lapped to achieve superior surface finish and high dimensional accuracy. This ensures smooth engagement with threaded components and consistent inspection results during repeated usage.

8. Can Thread Plug Gauges be customized?

Yes, Thread Plug Gauges can be customized for thread form, diameter, pitch, tolerance class, coatings, and special markings. Dedicated Impex Co. offers OEM manufacturing support including private labeling and customized branding options.

9. How accurate are Thread Plug Gauges?

Thread Plug Gauges are manufactured with micron-level precision to maintain strict dimensional tolerances. Precision grinding, heat treatment, and calibration processes ensure high repeatability and reliable inspection performance in mass production environments.

10. Why choose Dedicated Impex for Thread Plug Gauges?

Dedicated Impex is a trusted Supplier and Exporter of Thread Plug Gauges offering precision manufacturing, international standards compliance, and global export capability. We provide standard and custom gauges with strict quality control and export-ready packaging.

Need Additional Support?

If you didn’t find the information you’re looking for, please connect with our DIC Tools specialists for expert assistance. Our team is ready to support you with product selection, technical guidance, and export inquiries.
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