Emuge L0100110.5611 #4-40 UNC-3B STI Go/No-Go Thread Plug Gauge
Couldn't load pickup availability
Use this text to encourage communication or promote sharing on social networks.
This is a new Emuge Franken double-ended thread plug gauge (part number L0100110.5611) designed to inspect #4-40 UNC internal threads to Class 3B tolerance in STI (Screw Thread Insert) form, as clearly marked on the gauge body. The STI designation means the GO and NO-GO members are ground to the enlarged STI thread form, intended to verify tapped holes that will accept wire thread inserts (e.g., Heli-Coil/E-Z Lok style), ensuring the finished installed thread will produce a #4-40 UNC-3B internal thread after insert installation. Manufactured in Germany to ANSI/ASME B1.2 and AGD standards, the gauge features a knurled hardened steel handle with the GO end unmarked and the NO-GO end identified by a red band, conforming to standard color-coding practice. The gauge ships in Emuge's standard gray plastic protective storage case as shown.
Product Specifications
| Brand | Emuge Franken |
| Part Number (MPN) | L0100110.5611 |
| Thread Size | #4-40 |
| Thread Series | UNC (Unified National Coarse) |
| Thread Class | 3B (Internal) |
| Thread Form | STI (Screw Thread Insert) |
| Gauge Type | Go/No-Go Thread Plug Gauge |
| Nominal Major Diameter | 0.112 in |
| Threads Per Inch (TPI) | 40 |
| Pitch | 0.025 in (1/40 in) |
| Standard | ANSI/ASME B1.2 |
| Country of Origin | Germany |
| Handle Material | Hardened steel, knurled |
| No-Go End Identification | Red band on shank |
| Includes Storage Case | Yes, gray plastic case |
| Condition | New |