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Description
Technical data for the UNEF No 12-32 die
| Technical data | ||
|---|---|---|
| Nominal Diameter d1 Inches/mm/Decimal | UNEF No 12-32 | |
| Thread Pitch P in Inches and mm | 32 threads per inch | 0.79 mm |
| Thread Diameter mm / Decimal | 5.49 mm / 0.216 in | |
| Thread angle G | 60° | |
| Thread Standard | ANSI B-1.1 | |
Die UNEF No 12-32 HSS – miniature numbered-size inch die
Die UNEF No 12-32 is a precision tool for producing external threads in the American Extra Fine numbered-size system. Manufactured from high-speed steel (HSS) in accordance with DIN 22568, it cuts threads with a diameter of No 12 (5.49 mm / 0.216 inch) and a pitch of 32 threads per inch for miniature applications.
Main advantages of the UNEF No 12-32 die
- Finest pitch of 32 TPI – maximum thread density for precision miniature joints
- Numbered size No 12 – diameter of 5.49 mm used in electronics and precision mechanics
- HSS construction – capable of machining steels up to 800 MPa, aluminum alloys, and brass alloys
- Tolerance class 2A according to ANSI B1.1 – standard accuracy for industrial fits
- DIN 22568 – guaranteed quality and compatibility with die holders
Die UNEF No 12 is used in the electronics industry, optics, and the manufacture of precision instruments. Numbered size No 12 with a pitch of 32 TPI is a standard for miniature fasteners in American equipment.
Frequently asked questions
Size No 12 corresponds to a diameter of 5.49 mm (0.216 inch). The numbered-size system uses the formula: diameter = 0.060 + (number × 0.013) inch. For No 12: 0.060 + (12 × 0.013) = 0.216 inch = 5.49 mm.
UNEF (Extra Fine) has the finest threads in the Unified system. UNC represents coarse threads, UNF fine threads, and UNEF extra fine threads. For size No 12: UNC has 24 TPI, UNF has 28 TPI, and UNEF reaches 32 TPI.
The Unified system also includes: UNC – the coarse-thread version, UNF – the fine-thread version, UNS – special nonstandard threads, and UN – threads with a constant thread count: 4, 6, 8, 12, 16, 20, 28, or 32 per inch.
Product accessories
Hand Tap No.12-32 UNEF DIN-2181/2 2B HSS
Reference: 0000010835 In stock > 10 items
€21.05
€25.89 brutto
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| Courier GLS | Cash on delivery | 17,26 zł gross | Lead time 1 working day |
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