7/8-6 ACME thread: 22.23 mm × 6 TPI
Threads › 7/8-6 ACME
7/8-6 ACME is an Acme thread: 22.23 mm major diameter, 6 TPI (4.233 mm pitch), 29° form.
| Standard | Acme |
|---|---|
| Major diameter | 22.225 mm (0.875″) |
| Pitch | 6 TPI (4.233 mm) |
| Thread angle | 29° |
| Minor diameter, bolt | 17.48 mm |
| Minor diameter, nut | 17.48 mm |
| Tap drill | Not listed. Check your tap maker's chart. |
Minor diameters worked out from the basic profile: major Ø − pitch − 0.508 mm.
Open 7/8-6 ACME in BenchsmithAdd to order list
Measure it
Bolt: Measure across the crests of the bolt with the caliper jaws. Worn bolts read 0.1 to 0.3 under.
Nut or tapped hole: Measure across the tops of the threads inside the nut or hole with the inside jaws. That is the minor Ø. Worn or oversize holes read a little over.
Close in size, won't mate
- 7/8-9 UNCØ22.23 mm, 9 TPI
- 7/8-14 UNFØ22.23 mm, 14 TPI
- 7/8 BSWØ22.23 mm, 9 TPI
- M22Ø22 mm, 2.5 mm pitch
- M22×1.5Ø22 mm, 1.5 mm pitch
- Tr22×5Ø22 mm, 5 mm pitch
One size up or down
- 3/4-6 ACMEØ19.05 mm (down)
- 1-5 ACMEØ25.4 mm (up)
Got a bolt and no idea what it is? Measure the outside Ø and type it into Benchsmith → Find → Thread.