5/16-18 UNC [2A] - Left Hand - Go Ring Thread Gauge (JBO Johs Boss) Description
The 5/16-18 UNC [2A] - Left Hand - Go Ring Thread Gauge (JBO Johs Boss) has the following features:
- ANSI B1.2 Manufacturing Standard
- 2A Tolerance Class
- Heat-Treated Steel Material
- 18 TPI Thread Pitch
- Imperial Metric or Imperial?
- 5/16-18 UNC Thread Size
- UNC - Left Hand Thread Type
- Go Gauge Type
- JBO Johs Boss Brand/Series
- Yes - Sold Separately Suitable for UKAS Calibration
- Certificate of Conformity Certification Provided
- Uncalibrated Provided Calibration
Discover more about the Imperial UNC Ring Thread Gauges range.
Imperial UNC (Unified National Coarse) Ring Thread Gauges are precision tools used to inspect and verify the accuracy of external threads that conform to UNC standards. These gauges feature internal threads specifically crafted to match UNC specifications, ensuring that bolts, screws and other externally threaded components meet exact tolerances. Known for their coarse thread pitch, UNC threads are ideal for applications requiring strong, quick-assembly connections.
How Imperial UNC Ring Thread Gauges Work
Imperial UNC Ring Thread Gauges are used to test the external threads of components by screwing the part into the gauge. A "Go" gauge ensures the thread meets minimum size requirements by allowing the part to fit smoothly. A "No-Go" gauge ensures the thread does not exceed maximum tolerances by failing to engage fully. This dual-check system is critical for quality control in industries like construction, automotive and heavy machinery manufacturing. For example, these gauges are commonly used to verify bolt threads in structural applications, ensuring they fit securely with mating components and maintain mechanical integrity.
The Materials Imperial UNC Ring Thread Gauges are Made From
These gauges are manufactured from hardened tool steel or high-grade alloy steel. Tool steel is chosen for its exceptional wear resistance, durability and ability to retain precision over repeated use. The hardened construction ensures the gauges maintain their accuracy in demanding environments.
FAQs
Q: What is the purpose of Imperial UNC Ring Thread Gauges?
A: These gauges verify the accuracy of external threads, ensuring they meet Unified National Coarse standards for secure and reliable assembly.
Q: How do UNC threads differ from UNF threads?
A: UNC threads are coarse, offering quick assembly and high strength, while UNF threads are finer, providing tighter fits for precise applications.
Q: Can UNC Ring Thread Gauges be used on existing components?
A: Yes, they can verify the accuracy of both new and existing external threads, ensuring they meet UNC specifications.