3/16 BSW thread: 4.76 mm × 24 TPI
Threads › 3/16 BSW
3/16 BSW is a BSW Whitworth thread: 4.76 mm major diameter, 24 TPI (1.058 mm pitch), 55° form.
| Standard | BSW Whitworth |
|---|---|
| Major diameter | 4.762 mm (0.187″) |
| Pitch | 24 TPI (1.058 mm) |
| Thread angle | 55° |
| Minor diameter, bolt | 3.41 mm |
| Minor diameter, nut | 3.41 mm |
| Tap drill | Not listed. Check your tap maker's chart. |
Minor diameters worked out from the basic profile: major Ø − 1.28065 × pitch.
Open 3/16 BSW 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
- #10-24 UNCØ4.83 mm, 24 TPI
- #10-32 UNFØ4.83 mm, 32 TPI
- M5Ø5 mm, 0.8 mm pitch
- #8-32 UNCØ4.17 mm, 32 TPI
- #8-36 UNFØ4.17 mm, 36 TPI
- #12-24 UNCØ5.49 mm, 24 TPI
One size up or down
Got a bolt and no idea what it is? Measure the outside Ø and type it into Benchsmith → Find → Thread.