Custom thread adapters in 304, 316L, and 17-4PH, with other grades on request. Metric, inch, and pipe thread on either end, male or female, round or hex, made to your drawing or sample.
Applications: Sensors and Gauges, Fluid and Pneumatic Lines, Rod End and Linkage Assemblies, Machine Retrofits.
An adapter joins one thread to another. These are common inch and metric threads. Any pair of male and female threads, including pipe threads, is made to your drawing. Fine metric, pipe, and left hand threads are made to your drawing. Thread depth, hex size, and length are set on your drawing.
| Thread | Standard | Pitch | Pairs With |
|---|---|---|---|
| 1/2-20 | UNF | 20 threads per inch | 1/2 in bore rod end |
| 5/8-18 | UNF | 18 threads per inch | 5/8 in bore rod end |
| 3/4-16 | UNF | 16 threads per inch | 3/4 in bore rod end |
| M5 | Metric coarse | 0.8 mm | Metric screws and studs |
| M6 | Metric coarse | 1.0 mm | Metric screws and studs |
| M8 | Metric coarse | 1.25 mm | Metric screws and studs |
| M10 | Metric coarse | 1.5 mm | Metric screws and studs |
| M12 | Metric coarse | 1.75 mm | Metric screws and studs |
Pipe threads such as NPT and BSPT have different forms, so name the exact standard of each end.
| Form | What It Joins | Typical Use |
|---|---|---|
| Metric to metric | Two metric sizes or pitches | Fitting a part with an M8 thread to an M10 hole |
| Inch to metric | An inch thread to a metric thread | Joining parts from machines built to different standards |
| Pipe to metric | A pipe thread such as NPT to a metric thread | Sensor and gauge ports, where the device is metric and the port is pipe |
| Male to male | Two female threads | Joining two ports with a short body |
| Female to female | Two male threads | Joining two studs or fittings |
| Stepped or flanged adapter | A thread with a shoulder or a flange, made to drawing | Seating on a face, or mounting with a seal |
Send a drawing, a DXF file, or a sample. Our engineers review the dimensions and the tolerance before cutting metal, and we CNC machine the part ourselves, so you deal directly with the factory.
We cut metric, inch, and pipe threads on the same part, and check each end against the designation on your drawing.
Salt, moisture, washdown chemicals, and load drive the choice between 304, 316L, and 17-4PH. We confirm the grade against your drawing before production, and tiered pricing is available on larger orders.
A thread adapter joins two parts whose threads do not match. It has one thread on each end, and it converts one thread type or size to another.
Not directly. NPT and BSPT have different thread forms and angles, so they must be joined with an adapter made for that pair. State the exact standard of each end.
Measure the major diameter with calipers and the pitch with a thread gauge, then compare the result with a thread chart. A taper means a pipe thread. If you are unsure, send a sample.
Choose 316L where the adapter sees salt, chlorides, or chloride-based cleaning chemicals, because it resists pitting better than 304. Choose 304 for indoor, dry, or mildly humid service, where it costs less.
A quote request needs the thread on each end in full, the gender of each end, the sealing method, the overall length, the grade, and the quantity. A drawing or a sample speeds it up.
If you already have drawings, email them to [email protected].
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