Vermont Gage 361000000 Go Nogo Ring Gage Set 12-24 Unc

Product Description

The VERMONT GAGE 361000000 is a Go/NoGo thread ring gage set designed to inspect external threads for conformance to 12-24 UNC specifications. Machined from steel, this two-ring set gives technicians a fast, reliable pass/fail check on threaded fasteners and components during production or incoming inspection. The Go ring confirms that a threaded part falls within the minimum material condition, while the NoGo ring verifies the part does not exceed the maximum material condition. This type of gage is a standard tool in quality control, machining, and assembly environments wherever threaded-fastener tolerances need to be verified to a defined standard.

This gage set is suited for inspecting 12-24 UNC coarse-thread external threads held to a Class 3A tolerance, which is the tightest standard fit class for unified external threads. Typical applications include production floor inspection of machine screws, studs, and threaded shafts in manufacturing, aerospace, defense, and general mechanical assembly operations. The imperial measurement system designation means dimensions and thread form conform to Unified National Coarse standards as defined by ASME B1.2.

Key Features

• Go and NoGo rings included for complete pass/fail thread inspection in a single set
• Designed for 12-24 UNC coarse-thread profile
• Class 3A tolerance - tightest standard class for unified external threads
• Steel construction for durability and dimensional stability in shop environments
• Imperial measurement system, conforming to Unified National thread standards

Compatibility

Designed for use with external threads cut to the 12-24 UNC Class 3A standard per ASME B1.2. Suitable for use wherever unified coarse external thread inspection is required at that size and tolerance class.

Installation Notes

Thread ring gages are used by quality control inspectors, machinists, and assembly technicians - no installation in a system is required. Handle rings carefully to avoid dropping, which can alter calibration. Store in a clean, dry environment and keep free of chips, cutting fluid, and debris before and after use. Gages should be periodically recalibrated or checked against a setting plug gage to verify they remain within tolerance per your facility's gage control program.