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Flexbar 19510 | Thread Plug Gage with Handle, Class 2B GO-NOGO | 4-40 UNC
Part Number : 19510
This Flexbar handled plug gauge, part 19510, checks 4-40 UNC internal threads against Class 2B using GO and NOGO ends. Gauge tolerance is "X". Flexbar notes that Classes 2A and 2B are the usual choice for general-purpose fasteners, making the 19510 a fit for 4-40 UNC screws, nuts and bolts work.
Key features
- Thread size: 4-40 UNC
- Class 2B
- GO-NOGO plug gauge with handle
- "X" gauge tolerance
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