M30X2 Thread Ring Gauge Class 6g Tolerance for GO and NOGO Ring Gauges
Metric thread ring gauges are precision inspection tools used for checking the thread of outside diameter on screws, bolts and threaded rods. Standard accuracy includes 6g, 6h, 7g, 7h, 8g, and 8h tolerances.
Our facility features first-grade thread machining centers and measuring equipment to provide high precision thread ring gauges to customers worldwide.
Product Features
- Metric thread ring gauge system
- Available in 6g, 6h, 7g, 7h, 8g, 8h accuracy classes
- Includes both GO and NOGO types
- Conforms to DIN13 and DIN2280-89 standards
- Wear-resistant and corrosion-resistant construction
- Stable structure for easy operation
- Supplied in protective fitted case
Technical Specifications
| Order No. |
Size |
Coarse |
Fine |
Accuracy |
| KM-R001 |
M1.0 |
0.25 |
0.20 |
3h 4h 5g6g 5h4h 5h6h 6e 6f 6g 6h 7g6g 7h6h 8g 8h |
| KM-R011 |
M1.1 |
0.25 |
0.20 |
|
| KM-R012 |
M1.2 |
0.25 |
0.20 |
|
| KM-R014 |
M1.4 |
0.30 |
0.20 |
|
| KM-R016 |
M1.6 |
0.35 |
0.20 |
|
| KM-R018 |
M1.8 |
0.35 |
0.20 |
|
| KM-R020 |
M2.0 |
0.40 |
0.25 |
|
| KM-R022 |
M2.2 |
0.45 |
0.25 |
|
| KM-R025 |
M2.5 |
0.45 |
0.35 |
|
| KM-R030 |
M3.0 |
0.50 |
0.35 |
|
| KM-R035 |
M3.5 |
0.60 |
0.35 |
|
| KM-R040 |
M4.0 |
0.70 |
0.50 |
|
| KM-R050 |
M5.0 |
0.80 |
0.50 |
|
| KM-R060 |
M6.0 |
1.00 |
0.75 |
0.50 |
| KM-R080 |
M8.0 |
1.25 |
1.00 |
0.75 |
| KM-R100 |
M10.0 |
1.50 |
1.25 |
1.00 |
| KM-R120 |
M12.0 |
1.75 |
1.50 |
1.25 |
| KM-R140 |
M14.0 |
2.00 |
1.50 |
1.25 |
| KM-R160 |
M16.0 |
2.00 |
1.50 |
1.00 |
| KM-R180 |
M18.0 |
2.50 |
2.00 |
1.50 |
| KM-R320 |
M320 |
|
|
|
Applications
Thread ring gauges are primarily used to measure thread diameter and pitch with high precision. Their wide measurement range and simple operation make them ideal for machinery manufacturing, aerospace, automotive production, and other industrial applications.
Usage Guidelines
- Avoid touching the working surface with bare hands to prevent rust
- Store on stable surfaces like tool cabinets or machine backing plates - never on machine tool holders or guide rails
- Inspect regularly for damage, rust, or deformation
- Treat rust immediately with gasoline soak and anti-rust oil application
- Never store working surfaces together to prevent adhesion damage
- Clean thoroughly after use and store in dry conditions
Packing & Shipping
Company Profile
Frequently Asked Questions
Who are we?
Deko Corporation specializes in the development, manufacture, and marketing of KM brand precision measuring tools in China.
What are the terms of trade?
We support FOB, CFR, CIF, and EXW shipping terms.
What payment methods do you accept?
We accept T/T, L/C, D/A, D/P, PayPal, and Western Union.
Do you offer customization?
Yes, OEM services are available.