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Description
Technical data for the UNF No 5-44 die
| Technical data | ||
|---|---|---|
| Nominal Diameter d1 Inches/mm/Decimal | UNF No 5-44 | |
| Thread Pitch P in Inches and mm | 44 threads per inch | 0.58 mm |
| Thread Diameter mm / Decimal | 3.18 mm / 0.125 in | |
| Outside Diameter d2 | 20 mm | |
| Thickness h1 | 5 mm | |
| Number of Chip Holes | 3 | |
| Required Shaft Diameter | 3.10 mm | |
| Thread angle G | 60° | |
| Thread Standard | ANSI B-1.1 | |
UNF No 5-44 HSS die – miniature tool for precision threads
UNF No 5-44 die is designed for cutting very fine external threads with a diameter of No 5 (3.18 mm) and a pitch of 44 threads per inch. This is one of the finest threads in the UNF (Unified National Fine) system, ideal for applications requiring maximum precision. HSS construction ensures sharp cutting edges.
Characteristics of the UNF No 5-44 die
- Extremely fine pitch of 44 threads/inch – pitch finer than UNC No 5-40 by 10%
- Diameter of only 3.18 mm – for microelectronics, optics, and measuring instruments
- HSS steel for materials up to 800 MPa – precise machining of delicate components without risk of damage
- Conforms to DIN 22568 – European quality standard for inch tools
- 60° profile – compatibility with the entire Unified thread family
The die is used in watchmaking, medical equipment manufacturing, precision optics, and electronics. The UNF No 5-44 fine thread offers a larger contact area than its coarse-thread counterpart.
Frequently asked questions
Formula: 0.060" + (5 × 0.013") = 0.125" × 25.4 = 3.18 mm. Size No 5 is 3.18 mm in diameter.
UNF has 44 threads/inch, while UNC has only 40. The UNF fine thread has a 10% higher thread density.
For watchmaking, precision optics, electronics, and medical equipment requiring miniature connections.
Product accessories
UNF No 5-44 DIN 374 C HSSE tapping tool
Reference: 0000006250 In stock > 10 items
€7.89
€9.71 brutto
Hand tap UNF No 5-44 DIN 2181/2 HSS Fra
Reference: 0000007823 In stock < 10 items
€7.87
€9.68 brutto
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All orders are delivered by courier company GLS. For orders exceeding 369 PLN gross shipping is FREE
| 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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