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A Comprehensive Guide to UNS Thread Plug Gages: SWTG Brand by Sowant Precision

ASME B1.2 serves as the foundational standard specifying essential dimensions, tolerances, and gaging practices for Unified Inch screw threads (UN and UNR thread form). Among these, UNS threads (Unified Special Threads) represent non-standard diameter-pitch combinations engineered for specialized applications requiring unique geometries not covered by standard UNC (Coarse) or UNF (Fine) thread series.

Sowant Precision Gage Co., Ltd., a company specializing in precision measurement equipment since 2009, offers high-quality UNS thread plug gages under the SWTG brand. These gages are manufactured to exacting standards, including the model 7.375-16UNS-3A, ensuring reliable performance in critical inspection tasks.

SWTG Brand UNS Thread Plug Gages Overview

SWTG's UNS thread plug gages are precision instruments designed to verify the dimensional accuracy of internal unified special threads. Manufactured by Sowant Precision Gage Co., Ltd., these gages ensure that threaded components meet the specified design requirements and quality standards.

• Manufacturing Cycle: Typically 4 weeks

• Quality Assurance: Each gage comes with a calibration certificate

• Durable Material: Made from Cr15 steel, providing excellent wear resistance

• Cost-Effectiveness: Delivering high precision at a competitive price point

40 Standard Specifications of UNS Thread Gages

The following table outlines 40 standard UNS thread plug gage specifications compatible with ASME B1.2 requirements, including sample specifications such as 10.000-18UNS-3A:

Table: Comprehensive List of UNS Thread Gage Specifications

Technical Features and Manufacturing Excellence

Material Superiority

SWTG UNS thread plug gages are manufactured from Cr15 steel, a high-carbon chromium steel known for its exceptional properties in precision tooling. This material offers:

• Excellent wear resistance, ensuring extended service life

• High hardness and dimensional stability

• Superior corrosion resistance compared to standard tool steels

• Optimal balance between toughness and hardness for thread gaging applications

Quality Assurance and Certification

Each SWTG UNS thread plug gage undergoes rigorous quality control procedures to ensure compliance with ASME B1.2 standards. The gages are delivered with comprehensive calibration certificates that provide traceability to national standards, following the guidelines similar to those outlined in military and aerospace specifications.

Compliance with Industry Standards

SWTG UNS thread plug gages conform to established industry standards:

• ASME B1.2-1983 (R2017): Provides essential specifications and dimensions for gages used on Unified Inch screw threads

• UN and UNR Thread Forms: Covering both internal and external thread configurations

• Federal Standard H28-6: Addressing gaging practices for unified screw threads

Applications and Selection Guidance

Industry Applications

SWTG UNS thread plug gages serve critical quality control functions across multiple industries:

• Aerospace and defense components requiring special thread forms

• Medical implant devices utilizing specialized threading

• Petroleum equipment with API-standard threaded connections

• High-precision manufacturing where standard thread series are inadequate

Selection Considerations

When selecting UNS thread plug gages, consider these factors:

• Thread class designation (2B, 3A, 3B) based on application tolerance requirements

• Material compatibility with the parts being inspected

• Frequency of use and required durability

• Environmental conditions where inspection occurs

• Regulatory and compliance requirements for your industry

Conclusion

SWTG brand UNS thread plug gages from Sowant Precision Gage Co., Ltd. represent an optimal combination of precision, durability, and value for industries requiring special thread measurements. With their 4-week manufacturing cycle, inclusion of calibration certificates, wear-resistant Cr15 material, and comprehensive range of specifications including 7.375-16UNS-3A and 10.000-18UNS-3A, these gages provide reliable solutions for quality control applications. By adhering to ASME B1.2 standards and leveraging Sowant Precision's expertise in measurement equipment, SWTG gages ensure accurate verification of unified special threads across various industrial applications.

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