High-Precision Metric Thread Plug Gauge – 6H Class, GO & NO-GO Ends





Metric Thread Ring Gauge
Thank you for your interest in our plug gauges. Metric thread types use a 60° angle and comply with ISO and DIN standards.
We offer aluminum or steel handles, and for blind holes, gauges can be supplied with vent grooves for air relief.
Any further info. Feel free to contact us.

Size | Pitch | Accuracy | Order No. |
M2 | 0.25 | 6H | 860-0032 |
0.4 | 860-0033 | ||
M2.2 | 0.25 | 6H | 860-0034 |
0.45 | 860-0035 | ||
M2.5 | 0.35 | 6H | 860-0036 |
0.45 | 860-0037 | ||
M3.5 | 0.35 | 6H | 860-0038 |
0.6 | 860-0039 | ||
M4 | 0.5 | 6H | 860-0040 |
0.7 | 860-0041 | ||
M5 | 0.5 | 6H | 860-0042 |
0.8 | 860-0043 | ||
M6 | 0.5 | 6H | 860-0044 |
0.75 | 860-0045 | ||
1 | 860-0046 | ||
M7 | 0.5 | 6H | 860-0047 |
0.75 | 860-0048 | ||
1 | 860-0049 | ||
M8 | 0.5 | 6H | 860-0050 |
0.75 | 860-0051 | ||
1 | 860-0052 | ||
1.25 | 860-0053 | ||
M9 | 0.5 | 6H | 860-0054 |
0.75 | 860-0055 | ||
1 | 860-0056 | ||
1.25 | 860-0057 | ||
M10 | 0.5 | 6H | 860-0058 |
0.75 | 860-0059 | ||
1 | 860-0060 | ||
1.25 | 860-0061 | ||
1.5 | 860-0062 | ||
M11 | 0.5 | 6H | 860-0063 |
0.75 | 860-0064 | ||
1 | 860-0065 | ||
1.25 | 860-0066 | ||
1.5 | 860-0067 | ||
M12 | 0.5 | 6H | 860-0068 |
0.75 | 860-0069 | ||
1 | 860-0070 | ||
1.25 | 860-0071 | ||
1.5 | 860-0072 | ||
1.75 | 860-0073 | ||
M14 | 0.5 | 6H | 860-0074 |
0.75 | 860-0075 | ||
1 | 860-0076 | ||
1.25 | 860-0077 | ||
1.5 | 860-0078 | ||
2 | 860-0079 | ||
M15 | 1 | 6H | 860-0080 |
1.5 | 860-0081 | ||
M16 | 0.5 | 6H | 860-0082 |
0.75 | 860-0083 | ||
1 | 860-0084 | ||
1.25 | 860-0085 | ||
1.5 | 860-0086 | ||
2 | 860-0087 | ||
M17 | 1 | 6H | 860-0088 |
1.5 | 860-0089 | ||
M18 | 0.5 | 6H | 860-0090 |
0.75 | 860-0091 | ||
1 | 860-0092 | ||
1.5 | 860-0093 | ||
2 | 860-0094 | ||
2.5 | 860-0095 | ||
M20 | 0.5 | 6H | 860-0096 |
0.75 | 860-0097 | ||
1 | 860-0098 | ||
1.5 | 860-0099 | ||
2 | 860-0100 | ||
2.5 | 860-0101 | ||
M22 | 0.5 | 6H | 860-0102 |
0.75 | 860-0103 | ||
1 | 860-0104 | ||
1.5 | 860-0105 | ||
2 | 860-0106 | ||
2.5 | 860-0107 | ||
M24 | 0.5 | 6H | 860-0108 |
0.75 | 860-0109 | ||
1 | 860-0110 | ||
1.5 | 860-0111 | ||
2 | 860-0112 | ||
3 | 860-0113 | ||
M27 | 0.5 | 6H | 860-0114 |
0.75 | 860-0115 | ||
1 | 860-0116 | ||
1.5 | 860-0117 | ||
2 | 860-0118 | ||
3 | 860-0119 | ||
M30 | 0.75 | 6H | 860-0120 |
1 | 860-0121 | ||
1.5 | 860-0122 | ||
2 | 860-0123 | ||
3 | 860-0124 | ||
3.5 | 860-0125 |
Size | Pitch | Accuracy | Order No. |
M33 | 0.75 | 6H | 860-0126 |
1 | 860-0127 | ||
1.5 | 860-0128 | ||
2 | 860-0129 | ||
3 | 860-0130 | ||
3.5 | 860-0131 | ||
M36 | 0.75 | 6H | 860-0132 |
1 | 860-0133 | ||
1.5 | 860-0134 | ||
2 | 860-0135 | ||
3 | 860-0136 | ||
4 | 860-0137 | ||
M39 | 0.75 | 6H | 860-0138 |
1 | 860-0139 | ||
1.5 | 860-0140 | ||
2 | 860-0141 | ||
3 | 860-0142 | ||
4 | 860-0143 | ||
M42 | 1 | 6H | 860-0144 |
1.5 | 860-0145 | ||
2 | 860-0146 | ||
3 | 860-0147 | ||
4 | 860-0148 | ||
4.5 | 860-0149 | ||
M45 | 1 | 6H | 860-0150 |
1.5 | 860-0151 | ||
2 | 860-0152 | ||
3 | 860-0153 | ||
4 | 860-0154 | ||
4.5 | 860-0155 | ||
M48 | 1 | 6H | 860-0156 |
1.5 | 860-0157 | ||
2 | 860-0158 | ||
3 | 860-0159 | ||
4 | 860-0160 | ||
5 | 860-0161 | ||
M52 | 1 | 6H | 860-0162 |
1.5 | 860-0163 | ||
2 | 860-0164 | ||
3 | 860-0165 | ||
4 | 860-0166 | ||
5 | 860-0167 | ||
M56 | 1 | 6H | 860-0168 |
1.5 | 860-0169 | ||
2 | 860-0170 | ||
3 | 860-0171 | ||
4 | 860-0172 | ||
5.5 | 860-0173 | ||
M60 | 1 | 6H | 860-0174 |
1.5 | 860-0175 | ||
2 | 860-0176 | ||
3 | 860-0177 | ||
4 | 860-0178 | ||
5.5 | 860-0179 | ||
M64 | 6 | 6H | 860-0180 |
4 | 860-0181 | ||
3 | 860-0182 | ||
2 | 860-0183 | ||
1.5 | 860-0184 | ||
1 | 860-0185 | ||
M68 | 1 | 6H | 860-0186 |
1.5 | 860-0187 | ||
2 | 860-0188 | ||
3 | 860-0189 | ||
4 | 860-0190 | ||
6 | 860-0191 | ||
M72 | 1 | 6H | 860-0192 |
1.5 | 860-0193 | ||
2 | 860-0194 | ||
3 | 860-0195 | ||
4 | 860-0196 | ||
6 | 860-0197 | ||
M76 | 1 | 6H | 860-0198 |
1.5 | 860-0199 | ||
2 | 860-0200 | ||
3 | 860-0201 | ||
4 | 860-0202 | ||
6 | 860-0203 | ||
M80 | 1 | 6H | 860-0204 |
1.5 | 860-0205 | ||
2 | 860-0206 | ||
3 | 860-0207 | ||
4 | 860-0208 | ||
6 | 860-0209 |
Application
Functions For Plug Gauges:
Thread plug gauges are mechanical inspection tools used to verify the accuracy of internal threads. They are built to specific tolerances and rely on the Go/No-Go principle to quickly determine if a threaded hole meets the required specifications.
Usage For Plug Gauges:
During inspection, the Go end should screw into the thread smoothly without excessive force, confirming that the minimum size requirement is met. The No-Go end should not enter more than one or two full turns—if it does, the thread is outside the upper limit. Gauges should only be used on clean, debris-free threads to ensure reliable results.
Precautions For Plug Gauges:
● Clean both the gauge and the part before use to prevent wear and false readings.
● Apply only light hand pressure—never force the gauge into the thread.
● Do not use thread gauges for assembly, machining, or in rotating equipment.
● Store in a dry, protective case when not in use to avoid damage or rust.
● Regular calibration is recommended to maintain inspection reliability, especially in high-volume production environments.
Advantage
Efficient and Reliable Service
Wayleading Tools, your one-stop supplier for cutting tools, machinery accessories, measuring tools. As an integrated industrial powerhouse, we take immense pride in our Efficient and Reliable Service, tailored to meet the diverse needs of our esteemed clientele. Click Here For More
Good Quality
At Wayleading Tools, our commitment to Good Quality sets us apart as a formidable force in the industry. As an integrated powerhouse, we offer a diverse range of cutting-edge industrial solutions, providing you with the finest cutting tools, precise measuring instruments, and reliable machine tool accessories.Click Here For More
Competitive Pricing
Welcome to Wayleading Tools, your one-stop supplier for cutting tools, measuring tools, machinery accessories. We take immense pride in offering Competitive Pricing as one of our core advantages. Click Here For More
OEM, ODM, OBM
At Wayleading Tools, we take pride in offering comprehensive OEM (Original Equipment Manufacturer), ODM (Original Design Manufacturer), and OBM (Own Brand Manufacturer) services, catering to your unique needs and ideas.Click Here For More
Extensive Variety
Welcome to Wayleading Tools, your all-in-one destination for cutting-edge industrial solutions, where we specialize in cutting tools, measuring instruments, and machine tool accessories. Our core advantage lies in offering an Extensive Variety of products, tailored to meet the diverse needs of our esteemed clientele.Click Here For More
Matching Items
Solution
Technical Support:
We are delighted to be your solution provider for plug gauges. We are happy to offer you technical support. Whether it's during your sales process or your customers' usage, upon receiving your technical inquiries, we will promptly address your questions. We promise to reply within 24 hours at the latest, providing you with technical solutions.Click Here For More
Customized Services:
We are pleased to offer you customized services for plug gauges. We can provide OEM services, manufacturing products according to your drawings; OBM services, branding our products with your logo; and ODM services, adapting our products according to your design requirements. Whatever customized service you require, we promise to provide you with professional customization solutions.Click Here For More
Training Services:
Whether you are the purchaser of our products or an end-user, we are more than happy to provide training service to ensure you use the products you purchased from us correctly. Our training materials come in electronic documents, videos, and online meetings, allowing you to choose the most convenient option. From your request for training to our provision of training solutions, we promise to complete the entire process within 3 days Click Here For More
After-sales Service:
Our products come with a 6-month after-sales service period. During this period, any problems not intentionally caused will be replaced or repaired free of charge. We provide round-the-clock customer service support, handling any usage queries or complaints, ensuring you have a pleasant purchasing experience. Click Here For More
Solution Design:
By providing your machining product blueprints (or assisting in creating 3D drawings if unavailable), material specifications, and mechanical details used, our product team will tailor the most suitable recommendations for cutting tools, mechanical accessories, and measuring instruments, and design comprehensive machining solutions for you. Click Here For More
Packing
Packaged in a plastic box. Then packed in an outer box. It can be well protecting the indexable turning tool holder. Also customized packing is welcomed.

Please contact us for further information. To assist you more effectively, Kindly provide the following details:
● Specific product models and the approximate quantities you require.
● Do you require OEM, OBM, ODM or neutral packing for your products?
● Your company name and contact information for prompt and accurate feedback.
Additional, we invite you to request samples for quality testing.