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Description
Technical data for the UNC 1-8 die
| Technical data | ||
|---|---|---|
| Nominal Diameter d1 Inches/mm/Decimal | UNC 1-8 | |
| Thread Pitch P in Inches and mm | 8 threads per inch | 3.17 mm |
| Thread Diameter mm / Decimal | 25.4 mm / 1 in | |
| Outside Diameter d2 | 55 mm | |
| Thickness h1 | 22 mm | |
| Required Shaft Diameter | 25.16 mm | |
| Thread angle G | 60° | |
| Thread Standard | ANSI B-1.1 | |
Die UNC 1-8 HSS – large inch thread for heavy-duty industrial applications
Die UNC 1-8 is used to cut external threads with a diameter of 1 inch (25.4 mm) and 8 threads per inch. This is one of the largest standard inch sizes, used in heavy industry and steel structures. High-speed steel (HSS) construction guarantees tool strength.
Key advantages of the 1 inch UNC die
- Large diameter of 25.4 mm – for joints carrying very high loads
- 8 threads per inch – coarse pitch for maximum thread strength
- HSS steel – efficient machining of structural steels up to 800 MPa
- DIN 22568 standard – standardized dimensions for industrial holders
- 60° profile – compliance with ANSI B1.1
A product selected by heavy industrial plants, construction companies, and mining machinery service providers. Essential for work with large fasteners.
Frequently asked questions
1 inch equals exactly 25.4 mm. This is the basic conversion factor: 1 inch = 25.4 mm, used in all inch dimension calculations.
The Unified system also includes: UNF – fine threads, UNEF – extra-fine threads, UNS – special threads with nonstandard dimensions, and UN – constant-pitch threads with 4, 6, 8, 12, 16, 20, 28, or 32 threads per inch.
UNC threads have a coarser pitch and fewer threads per inch than UNF. A diameter of 1 inch has 8 threads per inch in UNC and 12 threads per inch in UNF. Verification is performed using inch thread pitch gauges.
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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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