Any M3 6H Thread Plug – Go/NoGo
Please use the request form to start a calibration services quote. You may also request equipment sales or repair services.
Description
The M3 6H Thread Plug Gauge (Go/NoGo) is an essential tool used for verifying the accuracy and conformity of threaded holes in mechanical components. Designed specifically for M3 metric threads, this gauge ensures that threaded holes meet precise dimensional tolerances and pitch diameter requirements. It is crucial in ensuring proper fit and function of mating screws or bolts in various industries, from automotive and aerospace to electronics and manufacturing.
Specifications:
- Thread Size: M3 metric thread size, indicating a nominal major diameter of approximately 3 millimeters.
- Thread Class: 6H thread class, defining the tolerance and fit requirements for internal threads. The “6” denotes the tolerance class (medium tolerance), and the “H” denotes the type of fit (medium fit).
- Go Gauge: Checks if the threaded hole’s dimensions are within acceptable tolerance limits. The go gauge should pass through the threaded hole without obstruction.
- NoGo Gauge: Checks if the threaded hole’s dimensions are within maximum tolerance limits. The NoGo gauge should not pass through the threaded hole beyond a specified depth.
- Measurement Standard: Conforms to international standards such as ISO, ANSI/ASME, or DIN for thread gauge design and manufacturing.
- Material: Typically made from hardened tool steel or carbide for durability and resistance to wear.
- Accuracy: High precision with tolerance limits specified in micrometers (μm) or thousandths of an inch (inches).
- Finish: Smooth surface finish to prevent damage to the threaded hole during measurement.
- Markings: Clearly marked with gauge size, thread class, and tolerance limits for easy identification and verification.
- Applications: Widely used in quality control and inspection processes across industries requiring precision thread measurement, including automotive, aerospace, electronics, and machinery manufacturing.
- Maintenance: Regular calibration and maintenance recommended to ensure gauge accuracy and prolong its lifespan.
Laboratory Calibration
Micro Precision operates 36 laboratories globally providing reliable localized support
- Certified metrologists staffing laboratories in North America, Central America, South America, Europe, Asia, and the Middle East
- Comprehensive scopes of accreditation to meet a broad range of customer needs
- Expedited calibration services available
- Pickup and delivery services available
- Environmentally controlled facilities to ensure high quality and accurate calibrations and measurements.
Laboratory Calibration
Micro Precision operates 36 laboratories globally providing reliable localized support
- Certified metrologists staffing laboratories in North America, Central America, South America, Europe, Asia, and the Middle East
- Comprehensive scopes of accreditation to meet a broad range of customer needs
- Expedited calibration services available
- Pickup and delivery services available
- Environmentally controlled facilities to ensure high quality and accurate calibrations and measurements.
Quality Certified Test Equipment Repair Services
When a piece of equipment fails you have the option to repair or replace that item. Oftentimes repair is an economical and efficient solution. Micro Precision’s repair offering provides advantages to our customers:
- Cost effective; often less than OEM
- Efficient; often much better turn-time than the OEM
- Flexibility; willingness to work with customers to meet their needs
- Warranted repairs
- Ability to service many obsolete instruments
Quality Certified Test Equipment Repair Services
When a piece of equipment fails you have the option to repair or replace that item. Oftentimes repair is an economical and efficient solution. Micro Precision’s repair offering provides advantages to our customers:
- Cost effective; often less than OEM
- Efficient; often much better turn-time than the OEM
- Flexibility; willingness to work with customers to meet their needs
- Warranted repairs
- Ability to service many obsolete instruments
Cost Effective Test Equipment Options
From the leasing of specialized electronic equipment for a specific task, to the purchase of physical and dimensional tools, we offer leasing services as well as used test equipment sales. We also locate hard-to-find electronics, and provide flexible options to meet ever-changing equipment needs.
Cost Effective Test Equipment Options
From the leasing of specialized electronic equipment for a specific task, to the purchase of physical and dimensional tools, we offer leasing services as well as used test equipment sales. We also locate hard-to-find electronics, and provide flexible options to meet ever-changing equipment needs.
Our Capabilities
Micro Precision can perform instrument calibration services on equipment from variety of applications for specific industries and lines of business. If you have a calibration need that is not listed in this area, please contact us.
Electrical
Micro Precision accredited electrical calibration lab services with multimeter, multifunction calibrator, oscilloscope, and power supply capabilities.
Optical
Micro Precision accredited optical, light, and fiber optic calibration lab services.
Thermodynamics & Chemical
Micro Precision accredited thermodynamic & chemical calibration lab services with temperature, humidity, life science, and pharma capabilities.
RF - Microwave
Micro Precision accredited RF & microwave calibration lab services.
Mechanical & Dimensional
Micro Precision accredited mechanical and dimensional calibration lab services with pressure, torque, force, flow, velocity, and aircraft jack load capabilities.
Laboratory Standards
Calibration laboratory standards are critical for your organization’s most accurate measurements.
Semiconductor Calibration
Micro Precision utilizes state-of-the-art technology to analyze semiconductor wafer thickness and step height.


