High Precision Thread Plug Gauges China Factory and Professional Suppliers
STORAEN's professional Thread Plug Gauges are high-precision metrology instruments engineered to verify the dimensional accuracy of internal screw threads. Utilizing a rigorous Go/No-Go design, these gauges ensure that internal threads meet strict international tolerance standards, eliminating subjective measurement errors and guaranteeing optimal mechanical fit and performance across various industrial applications.
From micro-precision metric threads to heavy-duty API oil pipe standards, our comprehensive range supports a vast array of profiles including BSPP, BSPT, NPT, and custom specialized threads. By integrating high-carbon tool steel and tungsten carbide materials with advanced CNC grinding and CMM calibration, STORAEN empowers manufacturers to achieve zero-defect production in the automotive, aerospace, and energy sectors.
Detailed Parameters
| Nominal Diameter | 0.8mm - 300mm | Material Options | High-Carbon Tool Steel / Tungsten Carbide |
|---|---|---|---|
| Hardness | 60HRC+ | Surface Finish | Ra ≤ 0.05μm (Mirror Finish) |
| Standard Compliance | ISO 965-3, ASME B1.2, DIN 13, ISO 7-1 | Precision Classes | h6 to h9 (Micron-level accuracy) |
| Thread Types | Metric (M), UN, BSPP, BSPT, NPT, API, ACME | Calibration | CMM & Optical Interferometer Traceable |
| Coating Options | TiN (Titanium Nitride) for corrosion resistance | Design Logic | Dual-function Go / No-Go mechanism |
Key Advantages
Extreme Durability
Hardened to 60HRC+ with optional TiN coating, ensuring maximum wear resistance in abrasive environments.
50% Faster Inspection
The intuitive Go/No-Go design drastically reduces inspection time compared to manual measurement methods.
Micron-Level Precision
Achieving tolerances as tight as ±0.0015mm, ensuring absolute compliance with global metrology standards.
Broad Compatibility
Supports everything from Metric and Inch to specialized API oil pipe and sewing machine threads.
Zero-Defect Assurance
Prevents faulty components from progressing to assembly, reducing rework costs and catastrophic failure risks.
Traceable Certification
Every gauge is accompanied by a certification linked to national institutes like NIST or PTB.
Product Gallery
Management Platforms
CAD Modeling
Precision 3D modeling of pitch, flank angle, and tolerance zones for absolute alignment.
CNC Machining
High-precision grinding and honing to shape profiles with micron-level accuracy.
Wire EDM Process
Electrical discharge machining for sharp, burr-free thread roots in tight tolerances.
Superfinishing
Polishing surfaces to Ra 0.05μm to minimize friction and protect workpieces.
CMM Calibration
Multi-point verification using coordinate measuring machines for 100% accuracy.
Quality Auditing
Rigorous functional testing of Go/No-Go performance with detailed traceability reports.
Investment Return Comparison
| Metric | Manual Measurement | STORAEN Plug Gauges |
|---|---|---|
| Inspection Speed | Slow / Laborious | Ultra-Fast (Binary Check) |
| Error Risk | High (Subjective) | Near Zero (Objective) |
| Rework Costs | Frequent due to drift | Minimized via early detection |
| Lifespan | Variable | Extended (60HRC+ Steel) |
| Compliance | Difficult to trace | Fully Certified (ISO/ASME) |
Frequently Asked Questions
The "Go" end must pass through the internal thread to confirm the minimum material condition, while the "No-Go" end must not enter, ensuring the thread does not exceed the maximum allowable tolerance.
Our gauges adhere to a wide range of global standards including ISO 965-3, ASME B1.2, DIN 13, and ISO 7-1, ensuring international interchangeability.
Yes, we specialize in API standard gauges, including oil pipe thread gauges (LP, TBG, CSG, NC) and sucker rod thread gauges for the energy sector.
We use high-carbon tool steel or tungsten carbide hardened to 60HRC+ and apply superfinishing (Ra ≤ 0.05μm) to reduce wear and maintain dimensional stability.
We can customize nominal diameters ranging from 0.8mm (M1) for micro-components up to 300mm (M300) for heavy industrial equipment.
Every thread plug gauge undergoes 100% functional testing and is provided with a traceable calibration report linked to national metrology institutes.
Ensure Absolute Thread Precision Today
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