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Description
Technical data for the UNEF 7/16-28 die
| Technical data | ||
|---|---|---|
| Nominal Diameter d1 Inches/mm/Decimal | UNEF 7/16-28 | |
| Thread Pitch P in Inches and mm | 28 threads per inch | 0.91 mm |
| Thread Diameter mm / Decimal | 11.11 mm / 0.4375 in | |
| Outside Diameter d2 | 30 mm | |
| Thickness h1 | 11 mm | |
| Number of Chip Holes | 5 | |
| Required Shaft Diameter | 11.02 mm | |
| Thread angle G | 60° | |
| Thread Standard | ANSI B-1.1 | |
UNEF 7/16-28 HSS die – inch threading die for extra fine threads
UNEF 7/16-28 die is a specialized tool for cutting external threads to the American extra fine thread standard. Made of high-speed steel (HSS) in accordance with DIN 22568, it enables precise threading with a diameter of 7/16 inch (11.11 mm) and a pitch of 28 threads per inch on components requiring the highest accuracy and joint stability.
Key advantages of the UNEF 7/16-28 die
- Extra fine thread, 28 TPI – provides exceptional adjustment precision and maximum resistance to loosening under vibration
- HSS high-speed steel – capability to machine structural steels up to 800 MPa as well as aluminum and brass alloys
- Tolerance 2A in accordance with ANSI B1.1 – standard accuracy grade for precision joints
- Thread angle 60° – full compatibility with the Unified thread system
- DIN 22568 – guaranteed quality and fit in industrial die stocks
UNEF 7/16 die is used in the aerospace industry, measuring equipment, and precision fastener manufacturing. The UNEF standard is selected where UNF threads do not provide sufficient accuracy. An essential tool for specialized technical workshops.
Frequently asked questions
The 7/16 inch dimension corresponds to 11.11 mm. The conversion factor is 25.4 mm per inch. Calculation: 0.4375 × 25.4 = 11.11 mm.
UNEF (Extra Fine) has the finest pitch of the Unified threads. UNC is a coarse thread, UNF is a fine thread, and UNEF is an extra fine thread. For a diameter of 7/16 inch: UNC has 14 TPI, UNF has 20 TPI, and UNEF has 28 TPI.
The Unified thread family includes: UNC – coarse thread, UNF – fine thread, UNS – special thread with nonstandard dimensions, and UN – constant-pitch threads with 4, 6, 8, 12, 16, 20, 28, or 32 threads per inch.
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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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