6 1/2-4 ACME PLUG GAGE
6 1/2-4 ACME PLUG GAGE PER ASME B1.5 made In China by Sowant Precision Gage.
Product Introduction: 6 1/2-4 ACME PLUG GAGE
Material: Tool Steel
Hardness: 58-62 HRC
Standard: ASME B1.5
Lead Time: 3-4 Weeks
Product Overview
The 6 1/2-4 ACME PLUG GAGE is a precision inspection tool designed for verifying the dimensional accuracy of ACME threads. Manufactured from high-grade tool steel with a hardness range of 58-62 HRC, this plug gage ensures exceptional wear resistance and long-term durability. Compliant with the ASME B1.5 standard, it guarantees compliance with rigorous industrial specifications for trapezoidal (ACME) threads, characterized by a 29° thread angle and precise thread form.
Ideal for applications in aerospace, automotive, and heavy machinery, this gage is tailored for environments requiring high-strength threaded connections and limited-space installations. Its robust construction and hardened surface make it suitable for repeated use in quality control processes.
Key Specifications
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Thread Type: ACME (29° trapezoidal thread)
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Size: 6 1/2-4 (Major Diameter: 6.5 inches, Threads per Inch: 4
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Tolerance Class: 2G (standard for general-purpose ACME threads
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Surface Finish: Precision-ground for minimal friction and accurate measurements
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Compliance: ASME B1.5 (ensures interchangeability and reliability).
Material & Manufacturing
Crafted from premium tool steel, this plug gage undergoes advanced heat treatment to achieve a uniform hardness of 58-62 HRC, optimizing resistance to deformation and wear10. The manufacturing process includes CNC machining and precision grinding, ensuring adherence to tight tolerances (±0.0005 inches).
Applications
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Quality assurance in threaded component production (e.g., lead screws, hydraulic systems).
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Calibration of ACME thread-cutting tools and machinery.
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Compliance verification for military and aerospace standards.
20 ACME Thread Plug/Ring Gage Variants
Below is a selection of ACME thread gages with varying sizes and specifications:
| Model | Threads per Inch | Tolerance Class | Material |
|---|---|---|---|
| 10-16 ACME PLUG GAGE | 16 | 2G | Tool Steel |
| 5-14 ACME RING GAGE | 14 | 3G | Carbide |
| 8-12 ACME PLUG GAGE | 12 | 2G | Alloy Steel |
| 2-10 ACME RING GAGE | 10 | 2G | Tool Steel |
| 5-8 ACME PLUG GAGE | 8 | 3G | Stainless Steel |
| 4-6 ACME RING GAGE | 6 | 2G | Tool Steel |
| 7-6 ACME PLUG GAGE | 6 | 2G | Alloy Steel |
| 10-5 ACME RING GAGE | 5 | 3G | Carbide |
| 10 1/8-5 ACME PLUG GAGE | 5 | 2G | Tool Steel |
| 12 1/4-5 ACME RING GAGE | 5 | 2G | Stainless Steel |
| 12 3/8-4 ACME PLUG GAGE | 4 | 3G | Alloy Steel |
| 12 1/2-4 ACME RING GAGE | 4 | 2G | Tool Steel |
| 12 3/4-4 ACME PLUG GAGE | 4 | 2G | Carbide |
| 2-4 ACME RING GAGE | 4 | 3G | Tool Steel |
| 8-10 STUB ACME PLUG* | 10 | 2G | Tool Steel |
| 3-6 STUB ACME RING* | 6 | 2G | Alloy Steel |
| 10-5 STUB ACME PLUG* | 5 | 2G | Stainless Steel |
| 2-4 STUB ACME RING* | 4 | 3G | Carbide |
| 9-12 STUB ACME PLUG* | 12 | 2G | Tool Steel |
| 6-8 STUB ACME RING* | 8 | 2G | Alloy Steel |
*Note: "STUB ACME" denotes reduced thread height for space-constrained applications.
Customization & Ordering
We support tailored specifications, including non-standard diameters, thread counts, and tolerance classes. Lead time for custom orders is 3-4 weeks, with expedited options available.
For detailed technical drawings or bulk inquiries, contact our engineering team to ensure compliance with your operational requirements.
References
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ASME B1.5 standard for ACME threads.
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Material properties and hardening processes.
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Applications in aerospace and industrial machinery.
