5/16 x 18 UNC Go-No/Go Thread Plug Gauge - Vargus V-Gauge
G19-00059
UNC - GP-UNC5/16X18-2B-G/NG
A Certificate of Inspection is supplied for each V-Gauge item with a QR code printed on the label (See Images)

Thread | UNC |
Diameter | 5/16 |
Pitch (TPI) | 18 |
Tolerance Class | 2B |
Standard Group | ANSI/ASME B1.2 |
G19-00059 5/16 X 18 UNC GO-NO/GO THREAD PLUG GAUGE - VARGUS V-GAUGE