Pipe Thread Identifiers
Check external NPT thread size and taper.
| For Thread Type | For Thread Location | For Pipe Size | Wd. | Ht. | Thick. | Color | Each | |
Aluminum | ||||||||
|---|---|---|---|---|---|---|---|---|
| NPT | External | 1/16, 1/8, 1/4, 3/8, 1/2 | 2" | 3" | 1/4" | Blue | 000000 | 000000 |
Thread Gauges for Lug Nuts
Identify the most common bolt thread sizes.
| For Thread Size | For Thread Location | Material | Each | |
| 7/16"-20 1/2"-20 9/16"-18 M12 × 1.25 mm M12 × 1.5 mm M12 × 1.75 mm M14 × 1.25 mm M14 × 1.5 mm M14 × 2 mm M16 × 1.5 mm | External, Internal | Aluminum | 00000000 | 000000 |