Low Hexagonal (DIN 439)
Equivalent Standard: ISO 4035 | UNI 24035
DIN 439 lock nuts, also known as thin hex nuts, are a crucial component in various industrial applications. These specialized nuts are designed to provide exceptional locking performance, ensuring that your fasteners remain securely in place even in demanding environments.
One of the key advantages of DIN 439 lock nuts is their slim profile. This design feature makes them ideal for situations where space is limited or when you need to reduce the overall height of the assembly. Their compact form factor doesn’t compromise on performance, though. These nuts offer outstanding resistance to vibration and loosening, guaranteeing the integrity of your connections.
- DIN 439
- Class: 4, 5, 6, 8
- Finish: BZP, HOT DIP GALV
- Thread: METRIC
DIN 439
Are offered in in both right hand and left hand thread and in steel, brass as well as stainless steel A2 and A4. BRK Industries offers over 500.000 unique fastener products from stock in inch and metric standard in a variety of materials and finishes. The following sizes of metric DIN 439 thin hex jam nuts are available for immediate shipping from stock: Diameters ranging from M2to M60 in steel and stainless steel A2 and A4. View parts by clicking on the following link: metric Thin Hex Jam Nuts DIN 439.
Technical Specification for DIN 439 Low Hexagonal
| Thread size d | M1,6 | (M1,8) | M2 | M2,5 | M3 | (M3,5) | M4 | M5 | M6 | |
| P | 0,35 | 0,35 | 0,4 | 0,45 | 0,45 | 0,6 | 0,7 | 0,8 | 1 | |
| da | min. | 1,6 | 1,8 | 2 | 2,5 | 3 | 3,5 | 4 | 5 | 6 |
| max. | 1,84 | 2,06 | 2,3 | 2,9 | 3,45 | 4 | 4,6 | 5,75 | 6,75 | |
| dw | min. | 2,4 | 2,7 | 3,1 | 4,1 | 4,6 | 5,1 | 5,9 | 6,9 | 8,9 |
| e | min. | 3,48 | 3,82 | 4,32 | 5,45 | 6,01 | 6,58 | 7,66 | 9,79 | 11,05 |
| m | max. | 1 | 1,1 | 1,2 | 1,6 | 1,8 | 2 | 2,2 | 2,7 | 3,2 |
| min. | 0,75 | 0,85 | 0,95 | 1,35 | 1,55 | 1,75 | 1,95 | 2,45 | 2,9 | |
| m´ | min. | 0,6 | 0,68 | 0,76 | 1,06 | 1,24 | 1,4 | 1,56 | 1,96 | 2,32 |
| s | max. | 3,2 | 3,5 | 4 | 5 | 5,5 | 6 | 7 | 8 | 10 |
| min. | 3,08 | 3,38 | 3,82 | 4,82 | 5,32 | 5,82 | 6,78 | 7,78 | 9,78 | |
| tdread size d | M8 | M10 | M12 | (M14) | M16 | (M18) | M20 | (M22) | M24 | |
| M8x1 | M10x1 | M12x1,5 | (M14x1,5) | M16x1,5 | (M18x1,5) | M20x2 | (M22x1,5) | M24x2 | ||
| – | M10x1,25 | M12x1,25 | – | – | (M18x2) | M20x1,5 | (M22x2) | (M24x1,5) | ||
| P | 1,25 | 1,5 | 1,75 | 2 | 2 | 2,5 | 2,5 | 2,5 | 3 | |
| da | min. | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 22 | 24 |
| max. | 8,75 | 10,8 | 13 | 15,1 | 17,3 | 19,5 | 21,6 | 23,8 | 25,9 | |
| dw | min. | 11,6 | 15,6 | 17,4 | 20,5 | 22,5 | 24,9 | 27,7 | 29,5 | 33,2 |
| e | min. | 14,38 | 18,9 | 21,1 | 24,49 | 26,75 | 29,56 | 32,95 | 35,03 | 39,55 |
| m | max. | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| min. | 3,7 | 4,7 | 5,7 | 6,42 | 7,42 | 8,42 | 9,1 | 9,9 | 10,9 | |
| m´ | min. | 2,96 | 3,76 | 4,56 | 5,14 | 5,94 | 6,74 | 7,28 | 7,92 | 8,72 |
| s | max. | 13 | 17 | 19 | 22 | 24 | 27 | 30 | 32 | 36 |
| min. | 12,73 | 16,73 | 18,67 | 21,67 | 23,67 | 26,16 | 29,16 | 31 | 35 | |
| tdread size d | (M27) | M30 | (M33) | M36 | (M39) | M42 | (M45) | M48 | (M52) | |
| (M27x2) | M30x2 | (M33x2) | M36x3 | (M39x3) | M42x3 | (M45x3) | M48x3 | (M52x3) | ||
| – | – | – | M36x2 | (M39x2) | M42x2 | (M45x2) | M48x2 | (M52x2) | ||
| (M27x1,5) | M30x1,5 | – | M36x1,5 | (M39x1,5) | M42x1,5 | (M45x1,5) | M48x1,5 | (M52x1,5) | ||
| P | 3 | 3,5 | 3,5 | 4 | 4 | 4,5 | 4,5 | 5 | 5 | |
| da | min. | 27 | 30 | 33 | 36 | 39 | 42 | 45 | 48 | 52 |
| max. | 29,2 | 32,4 | 35,6 | 38,9 | 42,1 | 45,4 | 48,6 | 51,8 | 56,2 | |
| dw | min. | 38 | 42,7 | 46,6 | 51,1 | 55,9 | 60 | 64,7 | 69,4 | 74,2 |
| e | min. | 45,2 | 50,85 | 55,37 | 60,79 | 66,44 | 71,3 | 76,95 | 82,6 | 88,25 |
| m | max. | 13,5 | 15 | 16,5 | 18 | 19,5 | 21 | 22,5 | 24 | 26 |
| min. | 12,4 | 13,9 | 15,4 | 16,9 | 18,2 | 19,7 | 21,2 | 22,7 | 24,7 | |
| m´ | min. | 9,9 | 11,1 | 12,3 | 13,5 | 14,6 | 15,8 | 17 | 18,2 | 19,8 |
| s | max. | 41 | 46 | 50 | 55 | 60 | 65 | 70 | 75 | 80 |
| min. | 40 | 45 | 49 | 53,8 | 58,8 | 63,1 | 68,1 | 73,1 | 78,1 | |