Tapped Taper Pins
These internally threaded pins sit flush in an assembly. For easy removal from a blind hole, thread a screw into the pin and pull out. Often used for positioning components and securing assemblies, they taper at a uniform rate to fit in tapered holes. Use a tapered drill bit that matches the pin number for a snug fit. They have slightly rounded edges to aid insertion.
Pins meet ASME B18.8.2 specifications for material and dimensions.
For technical drawings and 3-D models, click on a part number.
| Lg. | Small End Dia. | Rate of Taper | Thread Lg. | Thread Size  | Specifications Met | Each | |
12L14 Carbon Steel | |||||||
|---|---|---|---|---|---|---|---|
Pin Number 5—0.289" Large End Dia. | |||||||
| 1 1/4" | 0.263" | 1/4" per 12" | 3/8" | 10-24 | ASME B18.8.2 | 000000000 | 00000 |
| 2" | 0.248" | 1/4" per 12" | 3/8" | 10-24 | ASME B18.8.2 | 000000000 | 0000 |
Pin Number 6—0.341" Large End Dia. | |||||||
| 2" | 0.3" | 1/4" per 12" | 7/16" | 1/4"-20 | ASME B18.8.2 | 000000000 | 0000 |
| 3" | 0.279" | 1/4" per 12" | 7/16" | 1/4"-20 | ASME B18.8.2 | 000000000 | 00000 |
Pin Number 7—0.409" Large End Dia. | |||||||
| 3" | 0.347" | 1/4" per 12" | 1/2" | 5/16"-18 | ASME B18.8.2 | 000000000 | 00000 |
| 4" | 0.326" | 1/4" per 12" | 1/2" | 5/16"-18 | ASME B18.8.2 | 000000000 | 00000 |
Pin Number 8—0.492" Large End Dia. | |||||||
| 3" | 0.43" | 1/4" per 12" | 1/2" | 5/16"-18 | ASME B18.8.2 | 000000000 | 00000 |
| 4" | 0.409" | 1/4" per 12" | 1/2" | 5/16"-18 | ASME B18.8.2 | 000000000 | 00000 |
Pin Number 9—0.591" Large End Dia. | |||||||
| 5" | 0.487" | 1/4" per 12" | 5/8" | 3/8"-16 | ASME B18.8.2 | 000000000 | 00000 |
| 6" | 0.466" | 1/4" per 12" | 5/8" | 3/8"-16 | ASME B18.8.2 | 000000000 | 00000 |
Pin Number 10—0.706" Large End Dia. | |||||||
| 4" | 0.623" | 1/4" per 12" | 3/4" | 1/2"-13 | ASME B18.8.2 | 000000000 | 00000 |
| 6" | 0.581" | 1/4" per 12" | 3/4" | 1/2"-13 | ASME B18.8.2 | 000000000 | 00000 |