Precision Thread Plug Gauges China Factory | Professional Metrology Suppliers

Looking for reliable thread plug gauge China suppliers? Our factory provides professional Go No-Go gauges for measuring internal thread dimensions, including coarse, fine, and pipe threads. With precision from 0.8mm to 300mm, our tools ensure zero-defect quality control for industrial applications.

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Detailed Parameters

Nominal Diameter	0.8mm - 300mm	Material Options	Hardened Tool Steel / Tungsten Carbide
Hardness Level	60HRC+	Surface Finish	Ra ≤ 0.05μm (Mirror Finish)
Precision Classes	h6 to h9 (Micron-level accuracy)	Standard Compliance	ISO 965-3, ASME B1.2, DIN 13
Thread Profiles	Metric, BSPP, BSPT, NPT, API, ACME	Coating Options	Optional TiN for corrosion resistance
Calibration	Traceable to NIST / PTB Standards	Verification Method	Go / No-Go Binary System

Key Advantages

Extreme Durability

Constructed from high-carbon tool steel hardened to 60HRC+, ensuring wear resistance in abrasive environments.

50% Efficiency Boost

The Go/No-Go mechanism drastically reduces inspection time compared to manual measurement methods.

Micron Precision

Achieves accuracy up to ±0.0015mm, ensuring compliance with the tightest industrial tolerances.

Global Standard Support

Comprehensive coverage of Metric, American, British, Japanese, and German thread standards.

Zero-Defect Quality

Instantly flags non-conforming threads to prevent faulty components from reaching the assembly line.

Full Traceability

Each gauge is accompanied by a calibration certificate linked to national metrology institutes.

Product Gallery

Management Platforms

CAD Modeling

Precision 3D modeling of pitch, flank angle, and tolerance zones for exact standard replication.

CNC Machining

Advanced CNC grinding and honing processes to shape thread profiles with micron-level accuracy.

Wire EDM Tech

Utilizing Electrical Discharge Machining for burr-free thread roots in tight-tolerance applications.

Superfinishing

Rigorous polishing to Ra 0.05μm to minimize friction and protect the workpiece surface.

CMM Calibration

Multi-point calibration using Coordinate Measuring Machines for absolute dimensional verification.

Quality Audit

100% functional testing on all Go/No-Go ends before shipment with full documentation.

Investment Return Comparison

Performance Metric	Standard Gauges	STORAEN Precision Gauges
Inspection Speed	Manual / Slow	Instant Binary Check (50% Faster)
Wear Resistance	Moderate (Standard Steel)	Extreme (60HRC+ / Carbide)
Error Rate	Subjective Judgment	Objective Go/No-Go Verification
Service Life	Standard	Extended (Up to 25% longer with TiN)
Compliance Risk	Higher Variability	Certified Traceability (Zero-Defect)

Frequently Asked Questions

Q: What is the difference between the 'Go' and 'No-Go' ends?

The 'Go' end verifies that the thread is not too small (minimum material condition), while the 'No-Go' end ensures the thread is not too large (maximum allowable tolerance).

Q: Which materials are used for your thread plug gauges?

We use high-carbon tool steel hardened to over 60HRC and tungsten carbide for maximum wear resistance and dimensional stability.

Q: Do you provide custom thread gauges for proprietary standards?

Yes, we specialize in customizing nominal diameters from 0.8mm to 300mm and can manufacture gauges based on your specific proprietary drawings and tolerances.

Q: What international standards do your gauges comply with?

Our gauges are manufactured according to ISO 965-3, ASME B1.2, DIN 13, and other global standards including API for oil pipe threads.

Q: How often should a thread plug gauge be recalibrated?

Recalibration frequency depends on usage volume and material hardness. We recommend periodic checks against master gauges or certified laboratory calibration to maintain accuracy.

Q: Can your gauges be used for tapered threads like NPT?

Yes, we provide specialized tapered thread gauges for NPT, BSPT, and other conical profiles to ensure leak-proof seals in hydraulic and gas systems.