High-Precision Thread Gauges:
G Series
Master-grade thread plug and ring gauges crafted from premium Tungsten Carbide and Ceramics. Calibrated at 20℃ for aerospace, medical, and defense industries.
High-Precision G Series Non-Sealing Pipe Thread Gauges | MISHUTE Industrial Inspection Solutions
In the world of precision engineering and fluid systems, the difference between a secure fit and a catastrophic failure lies in microns. MISHUTE G Series (ISO 228) Non-Sealing Pipe Thread Gauges are engineered to provide the definitive benchmark for thread accuracy. Whether you are validating hydraulic components or complex valve assemblies, our gauges ensure your threads meet the most stringent international standards, eliminating the risk of assembly mismatch and costly product recalls.
Our inspection tools are more than just measuring instruments; they are a guarantee of quality for your production line. By implementing MISHUTE’s high-hardness, wear-resistant gauges, technical engineers and quality controllers can drastically reduce inspection downtime and ensure 100% compliance with global trade requirements.
Thread Gauges
Standard material: GCr15
Optional materials: SKD11, CrWMn, or other machinable materials
Material hardness: 58–65 HRC
Common tolerance grades:
Plug gauge grades: A, B
Ring gauge grades: A, B
Thread guage code | Hreads/inch | Plug guage | Ring guage | ||||||
L | kg | GO | GO NOT | ||||||
D | L | kg | D | L | kg | ||||
G 1/16 | 28 | 86 | 0.02 | 32 | 8 | 0.05 | 32 | 5 | 0.03 |
G 1/8 | |||||||||
G1/4 | 19 | 99 | 0.04 | 38 | 12 | 0.1 | 38 | 8 | |
G 3/8 | 112 | 0.07 | 45 | 0.14 | 45 | 0.07 | |||
G1/2 | 14 | 132 | 0.14 | 16 | 0.18 | 12 | 0.1 | ||
G5/8 | 0.16 | 53 | 0.25 | 53 | 0.13 | ||||
G3/4 | 136 | 0.2 | 63 | 0.35 | 63 | 0.19 | |||
G7/8 | 0.25 | 0.34 | 0.27 | ||||||
G 1 | 11 | 156 | 0.37 | 71 | 20 | 0.49 | 71 | 16 | 0.25 |
G 11/8 | 0.45 | 0.45 | 0.43 | ||||||
G11/4 | 160 | 0.53 | 85 | 0.67 | 85 | 0.4 | |||
G11/2 | 0.65 | 0.68 | 0.59 | ||||||
G 13/4 | 176 | 0.89 | 100 | 0.97 | 100 | 0.55 | |||
G2 | 1.04 | 0.89 | 0.77 | ||||||
G21/4 | 1.33 | 112 | 1.12 | 112 | 0.8 | ||||
G21/2 | 1.64 | 125 | 1.37 | 125 | 0.9 | ||||
G23/4 | 1.86 | 1.24 | 1.09 | ||||||
G3 | 2.11 | 140 | 1.62 | 140 | 1.18 | ||||
G31/2 | 2.64 | 160 | 2.12 | 160 | 1.3 | ||||
Core Advantages & Inspection Capabilities
Extreme Wear Resistance (58-65 HRC)
MISHUTE utilizes premium GCr15 bearing steel as standard, with optional high-performance alloys like SKD11 and CrWMn. Our proprietary heat treatment process achieves a hardness of 58-65 HRC, ensuring the gauge maintains its dimensional stability over thousands of inspection cycles, lowering your total cost of ownership.
Comprehensive Tolerance Coverage for Global Markets
From ultra-tight 4h/4H tolerances for precision instruments to standard 6g/6H and 8g/8H fits, MISHUTE offers the full spectrum of metric classifications. This versatility ensures that your products meet the specific fit requirements of any global region or technical specification.
Advanced Metrology Verification
To ensure every MISHUTE gauge is "Zero-Defect," we employ dual-verification methods. We utilize the traditional "Three-Wire Method" with high-precision micrometers alongside state-of-the-art Integrated Thread Scanners—the preferred method of national metrology institutes—to guarantee the accuracy of every flank angle and pitch.
Bespoke OEM/ODM Customization
MISHUTE understands that B2B clients often have unique requirements. We offer 360° customization services including specialized dimensions, alternative materials, custom branding/marking, and protective packaging tailored to your brand’s distribution needs.
Why Choose Us
Precision Guaranteed by Advanced Equipment
Extended Lifespan through Material Innovation
Global OEM & Export Experience
Applications
FAQ
Calibration frequency depends on the material and usage volume. Our Carbide gauges typically last 5-10 times longer between calibrations compared to steel.
Yes, every gauge includes a factory inspection report. Traceable third-party certification is also available.
We specialize in bespoke orders for special diameters, pitches, and thread profiles like ACME or Buttress.
While Ceramic is brittle compared to steel, our Zirconia (ZrO2) is highly toughened to withstand industrial use while providing unmatched corrosion resistance
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