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- Inch
- 3 Pieces
- 5/16-18 UNC Thread Size & Type
- Taper-Plug-Bottoming Chamfer Type
- HSS Material
features
- Ground threads are made from high speed steel
- Most common general-purpose taps used in the industry
includes
- One each - taper, plug, and bottoming
- A set of all three is recommended when tapping to the bottom of a blind hole.
| Thread Pitch | N/A |
| Thread Type | UNC |
| Diameter - Decimal | 0.3125 in |
| Ground Threads | Yes |
| Shank Square Length | 0.375 in |
| Threads per Inch | 18 |
| Overall Length | 2.71875 in |
| Truncated Threads | No |
| Interrupted Thread | No |
| Thread Size - Decimal | 0.3125 in |
| Tap Size | 5/16 in |
| Blank Construction | USCTI Table 302 |
| Operation Type | Blind Hole, Thru-Hole |
| Pitch Dia. | H3 |
| Shank Square Width - Metric | 6.05 mm |
| Direction of Cut | Right Hand |
| Shank Square Width | 0.238 in |
| Thread Size - Metric | 7.94 mm |
| Diameter - Fraction | 5/16 in |
| Thread Limit | H3 |
| No. of Flutes | 4 |
| Thread Creation | Thread Cutting |
| Thread Per Inch | 18 |
| Chamfer Type | Taper, Plug, Bottoming |
| Tap Type | Hand |
| Shank Square Length - Metric | 9.52 mm |
| Shank End Feature | Square |
| Shank Size - Metric | 8.08 mm |
| Thread Length - Metric | 17.53 mm |
| Thread Size | 5/16 in |
| Spiral Point | No |
| Weight | 0.2 LB |
