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Description
Technical data for the UNS 3/4-18 die
| Technical data | ||
|---|---|---|
| Nominal Diameter d1 Inches/mm/Decimal | UNS 3/4-18 | |
| Thread Pitch P in Inches and mm | 18 threads per inch | 1.41 mm |
| Thread Diameter mm / Decimal | 19.05 mm / 0.75 in | |
| Outside Diameter d2 | 38 mm | |
| Thickness h1 | 14 mm | |
| Number of Chip Holes | 5 | |
| Thread angle G | 60° | |
| Thread Standard | ANSI B-1.1 | |
Die UNS 3/4-18 HSS – special inch threading die with nonstandard thread density
Die UNS 3/4-18 is a professional tool for producing external threads with a nonstandard pitch in the American Unified National Special system. Manufactured from high-speed steel (HSS) to DIN 22568, it cuts threads with a diameter of 3/4 inch (19.05 mm) and 18 threads per inch.
Key features of the UNS 3/4-18 die
- Special pitch of 18 TPI – thread density between the UNF (16 TPI) and UNEF (20 TPI) standards for specific applications
- UNS special thread – a dedicated solution for components outside the standard inch thread series
- HSS construction – capable of machining steels with tensile strengths up to 800 MPa as well as copper and aluminum alloys
- Tolerance 2A in accordance with ANSI B1.1 – standard accuracy class for industrial fits
- DIN 22568 – guaranteed quality and universal fit for die holders
Die UNS 3/4-18 is used in industrial hydraulics, pneumatics, and servicing equipment imported from the USA. The 18 TPI pitch provides an optimal balance between assembly speed and threaded connection stability.
Frequently asked questions
A size of 3/4 inch is 19.05 mm. The conversion factor is 25.4 mm per inch. Result: 0.75 × 25.4 = 19.05 mm.
UNS (Unified National Special) denotes a thread with nonstandard parameters. For a diameter of 3/4 inch, the standard pitches are: UNC 10 TPI, UNF 16 TPI, UNEF 20 TPI. The 18 TPI pitch falls outside these series and is therefore classified as UNS.
The Unified family also includes: UNC – coarse threads, UNF – fine threads, UNEF – extra fine threads, and UN – series with constant thread counts of 4, 6, 8, 12, 16, 20, 28, or 32 per inch.
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| Courier GLS | Przelew24 / Prepayment | 14,76 zł gross | Delivery time 1 working day |
| Courier GLS | Cash on delivery | 17,26 zł gross | Lead time 1 working day |
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