DIN 1479 Coupling Nuts With Inspection Hole
Product introduction
DIN 1479 specifies hexagon coupling nuts with two holes, designed for extending threaded connections in various industrial applications. These nuts feature a right-hand thread on one end and a left-hand thread on the other, enabling secure joining of threaded rods. The two holes on the sides are designed for use with hook wrenches or special tools for tightening and loosening.
Common Specifications
| Materials | Carbon steel |
| Class | 5, 6, 8, 10, 12 |
| Range | M6 - M36 |
| Thread | Coarse , Fine, Extra Fine, Special-Fine |
| Surface | Plain, zinc plated, hot-dip galvanized, GEOMET, ZINC-NICKLE, DACROMATE etc. |
Key Features
- Two side holes for hook wrench tightening
- Right-hand and left-hand thread combination
- Full internal thread through entire length
- Designed for threaded rod extension applications
- Conforms to DIN 1479 specifications
Application industry
- Ventilation system ductwork installation
- Suspension equipment mounting
- Mechanical engineering and machine tools
- Shipbuilding and industrial equipment
- General industrial fastening
data table
| Size | M6 | M8 | M10 | M12 | M16 | M20 | M24 | M30 |
| Coase | 1 | 1.25 | 1.5 | 1.75 | 2 | 2.5 | 3 | 3.5 |
| Fine | 0.75 | 1 | 1.25 | 1.5 | 1.5 | 2 | 2 | 3 |
| Extra Fine | - | 0.75 | 1 | 1.25 | 1 | 1.5 | 1.5 | 2 |
| s Min (mm) | 9.78 | 12.73 | 15.73 | 17.73 | 23.67 | 29.16 | 35.00 | 45.00 |
| s Max (mm) | 10.00 | 13.00 | 17.00 | 19.00 | 24.00 | 30.00 | 36.00 | 46.00 |
| e Min (mm) | 11.05 | 14.38 | 18.90 | 21.10 | 26.75 | 33.53 | 39.98 | 51.28 |
| m Min (mm) | 29.50 | 34.20 | 44.20 | 54.20 | 74.20 | 94.20 | 114.20 | 123.80 |
| m Max (mm) | 30.50 | 35.50 | 45.80 | 55.80 | 75.80 | 95.80 | 115.80 | 126.20 |
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