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Description
Technical data for the UNC 1 1/8-7 die
| Technical data | ||
|---|---|---|
| Nominal Diameter d1 Inches/mm/Decimal | UNC 1 1/8-7 | |
| Thread Pitch P in Inches and mm | 7 threads per inch | 3.63 mm |
| Thread Diameter mm / Decimal | 28.58 mm / 1.125 in | |
| Outside Diameter d2 | 65 mm | |
| Thickness h1 | 25 mm | |
| Number of Chip Holes | 5 | |
| Required Shaft Diameter | 28.31 mm | |
| Thread angle G | 60° | |
| Thread Standard | ANSI B-1.1 | |
Die UNC 1 1/8-7 HSS – large-diameter inch thread for steel structures
Die UNC 1 1/8-7 is designed for cutting external threads with a diameter of 1 1/8 inches (28.58 mm) and 7 threads per inch. This size is used in heavy industrial structures and construction machinery. HSS provides durability when machining large diameters.
Features of the 1 1/8 inch American threading die
- Diameter of 28.58 mm – for joints in heavily loaded structures
- 7 threads per inch – coarse pitch for maximum thread load capacity
- HSS material – threading steels with tensile strengths up to 800 MPa
- Manufactured according to DIN 22568 – compatibility with industrial holders
- Thread angle 60° – Unified National system profile
The die is used in heavy industry, power generation, and the construction of large machinery and equipment. It guarantees secure, durable threaded joints.
Frequently asked questions
1 1/8 inches equals 28.58 mm. Conversion factor: 1 inch = 25.4 mm. Calculation: 25.4 mm × 1.125 = 28.58 mm.
The Unified system includes: UNF – fine threads, UNEF – extra-fine threads, UNS – special nonstandard threads, and UN – constant-pitch threads with 4, 6, 8, 12, 16, 20, 28, or 32 threads per inch.
UNC has a coarser pitch and fewer threads per inch than UNF. A 1 1/8 inch UNC thread has 7 threads per inch, whereas a 1 1/8 inch UNF thread has 12 threads per inch. Measurement is performed using thread 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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