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Description
Technical data for the UNF No 8-36 die
| Technical data | ||
|---|---|---|
| Nominal Diameter d1 Inches/mm/Decimal | UNF No 8-36 | |
| Thread Pitch P in Inches and mm | 36 threads per inch | 0.71 mm |
| Thread Diameter mm / Decimal | 4.17 mm / 0.164 in | |
| Outside Diameter d2 | 20 mm | |
| Thickness h1 | 7 mm | |
| Number of Chip Holes | 3 | |
| Required Shaft Diameter | 4.08 mm | |
| Thread angle G | 60° | |
| Thread Standard | ANSI B-1.1 | |
UNF No 8-36 HSS die – compact tool for fine threads
UNF No 8-36 die is used to cut precise external threads with a diameter of No 8 (4.17 mm) and a pitch of 36 threads per inch. Tolerance class 2A provides optimum assembly clearance in standard joints. The fine pitch characteristic of UNF (Unified National Fine) ensures better vibration resistance than the UNC equivalent.
Features of the No 8-36 UNF fine thread die
- Pitch of 36 threads/inch – finer thread than UNC No 8-32, greater adjustment precision
- Diameter of 4.17 mm – ideal for electronics, measuring instruments, and precision engineering
- Class 2A – standard tolerance for general-purpose joints
- HSS steel for materials up to 800 MPa – durability when machining structural steels and light alloys
- Conforms to DIN 22568 – dimensions and quality verified by a European standard
The die is suitable for manufacturing monitoring and measuring equipment, electronic equipment, and small mechanical components. The fine UNF pitch provides more precise positioning than a coarse thread.
Frequently asked questions
Formula: 0.060" + (8 × 0.013") = 0.164" × 25.4 = 4.17 mm. Number 8 indicates a diameter of 4.17 mm.
UNF has 36 threads/inch, while UNC has only 32. UNF is 12.5% finer and provides better vibration resistance.
Class 2A is the standard tolerance for external threads, providing optimum assembly clearance.
Product accessories
UNF No 8-36 DIN 374 C HSSE tapping tool
Reference: 0000006262 In stock < 10 items
€7.89
€9.71 brutto
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| 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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