Converted length
25.4 mm = 1 in
Conversion basis
| Relationship | Exact value used |
|---|---|
| Metric | 1 m = 100 cm = 1,000 mm |
| Inch to millimetre | 1 in = 25.4 mm |
| Foot to inch | 1 ft = 12 in |
Keep the original specification context
A converted length is a numerical reference only. Converting an inch diameter to millimetres does not create a metric thread or prove interchangeability. Keep the original unit, tolerance, thread callout, drawing revision and governing standard with the enquiry.
For thread notation, use the fastener thread guide and the thread specification checklist.