Stainless Steel Lock Nuts manufacturer In India produces different types of lock nuts in different sizes, grades and specifications. Suraj Metal Corporation is a leading manufacturer and supplier of these Self Locking Nut types. The usual or common nuts have threads inside them and the nuts are fastened onto the bolt threads. When exposed to vibrations, they can loosen up and come out of the bolt.
The SS Lock Nuts are designed to hold onto the bolt thread even under heavy vibrations. There are different types of the Self Locking Nut such as the metal lock nut and nylon inserted lock nut. The lock nuts have a metal stiff on top of them to make an extra grip with the bolt which prevents the nuts from loosening due to vibrations. The Locking Wheel Nuts could be seen in automobile wheel fixing applications. The earlier solution for the vibration loosening was to use two nuts on the bolt screw. While it is an effective way, the Cam Lock Nut saves cost by solving the problem with just one nut. The applications can vary from oil and gas industry, marine applications, general corrosive services and in other applications as well. The Lock and Wheel Nut can be used in aircraft engines, high vibration systems such as motors and engines and others. The piping flanges also use the Flange Lock Nut types to lock the nuts onto the bolt threads to fit the flanges in place. As a leading manufacturer, we supply and produce the nuts in different types such as the Metric Lock Nuts and others. Please feel free to contact us for more information and pricing of the different types of lock nuts such as the Nylon Insert Nut and others.
| Product name | Lock Nuts |
|---|---|
| Size | M2-M60, UNC:1/4”-4” |
| Length | 6mm-500mm |
| Standard | DIN934 DIN936 DIN439 DIN555 A194 2H ASTM A563 |
| Grade | 4, 8, 10, AISI 2, AISI 5, AISI 8 |
| Material | 18-8 Stainless Steel, Stainless steel 201, stainless steel ss 304/ SS316 A2/A4, SS201, SS303, SS304, SS316, SS316L, SS904L, A2-70; A4-70; A4-80 |
| Thread Requirements | ASME B1.1, UNC & UNF, Class 2A (Fastenal will inspect and accept parts with a 1A no-go gauge) |
| Finish | Per ASTM A380/A380M |
| Manufacturing Process | Wire Drawing, Cold Heading, Insert tapping, Heat Treatment, Surface Plating, Inspection, Packing |
| Coatings | Black Oxide, Cadmium, Galvanized, Teflon, Xylan, Zinc, Others Upon Request |
| Thread size d | M5 | M6 | M7 | M8 | M10 | M12 | M14 | M16 | M18 | M20 | M22 | M24 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| - | - | - | M8x1 | M10x1 | M12x1,5 | M14x1,5 | M16x1,5 | M18x2 | M20x2 | M22x2 | M24x2 | ||
| - | - | - | - | M10x1,25 | M12x1,25 | - | - | M18x1,5 | M20x2 | M22x2 | - | ||
| P | 0,8 | 1 | 1 | 1,25 | 1,5 | 1,75 | 2 | 2 | 2,5 | 2,5 | 2,5 | 3 | |
| da | min. | 5 | 6 | 7 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 22 | 24 |
| max. | 5,75 | 6,75 | 7,75 | 8,75 | 10,8 | 13 | 15,1 | 17,3 | 19,5 | 21,6 | 23,7 | 25,9 | |
| dw | min. | 6,9 | 8,9 | 9,6 | 11,6 | 15,6 | 17,4 | 20,5 | 22,5 | 24,9 | 27,7 | 29,5 | 33,2 |
| e | min. | 8,79 | 11,05 | 12,12 | 14,38 | 18,9 | 21,1 | 24,49 | 26,75 | 29,56 | 32,95 | 35,03 | 29,55 |
| h | max. = nominal size | 6,3 | 8 | 8,5 | 9,5 | 11,5 | 14 | 16 | 18 | 20 | 22 | 25 | 28 |
| min. | 6 | 7,7 | 8,2 | 9,14 | 11,14 | 13,64 | 15,3 | 17,3 | 19,16 | 20,7 | 23,7 | 26,7 | |
| m | min. | 4,4 | 4,9 | 6,14 | 6,44 | 8,04 | 10,37 | 12,1 | 14,1 | 15,1 | 16,9 | 18,1 | 20,2 |
| m´ | min. | 3,52 | 3,92 | 4,91 | 5,15 | 6,43 | 8,3 | 9,68 | 11,28 | 12,08 | 13,52 | 14,48 | 16,16 |
| s | max. = nominal size | 8 | 10 | 11 | 13 | 17 | 19 | 22 | 24 | 27 | 30 | 32 | 36 |
| min. | 7,78 | 9,78 | 10,73 | 12,73 | 16,73 | 19,67 | 21,67 | 23,67 | 26,16 | 29,16 | 31 | 35 | |
| Weight (7,85 kg/dm3) kg/1000pcs | 1,4 | 3,1 | 3,2 | 6 | 11,7 | 16,6 | 21 | 37,8 | 51,6 | 68 | 86 | 127 | |
| Thread d | M3 | M4 | M5 | M6 | M7 | M8 | M10 | M12 | M14 | M16 | M18 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| - | - | - | - | - | M8x1 | M10x1 | M12x1,5 | M14x1,5 | M16x1,5 | M18x2 | ||
| - | - | - | - | - | - | M10x1,25 | M12x1,25 | - | - | M18x1,5 | ||
| P | 0,5 | 0,7 | 0,8 | 1 | 1 | 1,25 | 1,5 | 1,75 | 2 | 2 | 2,5 | |
| da | min. | 3 | 4 | 5 | 6 | 7 | 8 | 10 | 12 | 14 | 16 | 18 |
| max. | 3,45 | 4,6 | 5,75 | 6,75 | 7,75 | 8,75 | 10,8 | 13 | 15,1 | 17,3 | 19,5 | |
| dw | min. | 4,6 | 5,9 | 6,9 | 8,9 | 9,6 | 11,6 | 15,6 | 17,4 | 20,5 | 22,5 | 24,9 |
| e | min. | 6,01 | 7,66 | 8,79 | 11,05 | 12,12 | 14,38 | 18,9 | 21,1 | 24,49 | 26,75 | 29,56 |
| h | nominal= max. | 4 | 5 | 5 | 6 | 7,5 | 8 | 10 | 12 | 14 | 16 | 18,5 |
| min. | 3,7 | 4,7 | 4,7 | 5,7 | 7,14 | 7,64 | 9,64 | 11,57 | 13,3 | 15,3 | 17,66 | |
| m | min. | 2,4 | 2,9 | 3,2 | 4 | 4,7 | 5,5 | 6,5 | 8 | 9,5 | 10,5 | 13 |
| m´ | min. | 1,65 | 2,2 | 2,75 | 3,3 | 3,85 | 4,4 | 5,5 | 6,6 | 7,7 | 8,8 | 9,9 |
| s | nominal= max. | 5,5 | 7 | 8 | 10 | 11 | 13 | 17 | 19 | 22 | 24 | 27 |
| min. | 5,32 | 6,78 | 7,78 | 9,78 | 10,73 | 12,73 | 16,73 | 18,67 | 21,67 | 23,67 | 26,16 | |
| Weight (7,85Kg/dm3) kg/1000pcs | 0,5 | 1 | 1,4 | 2,4 | 3 | 5,1 | 10,6 | 17,2 | 26 | 34 | 45 | |
| Thread d | M20 | M22 | M24 | M27 | M30 | M33 | M36 | M39 | M42 | M45 | M48 | |
| M20x2 | M22x2 | M24x2 | M27x2 | M30x2 | M33x2 | M36x3 | M39x3 | M42x3 | M45x3 | M48x3 | ||
| M20x1,5 | M22x1,5 | - | - | - | - | - | - | - | - | - | ||
| P | 2,5 | 2,5 | 3 | 3 | 3,5 | 3,5 | 4 | 4 | 4,5 | 4,5 | 5 | |
| da | min. | 20 | 22 | 24 | 27 | 30 | 33 | 36 | 39 | 42 | 45 | 48 |
| max. | 21,6 | 23,7 | 25,9 | 29,1 | 32,4 | 35,6 | 38,9 | 42,1 | 45,4 | 48,6 | 51,8 | |
| dw | min. | 27,7 | 29,5 | 33,2 | 38 | 42,7 | 46,6 | 51,1 | 55,9 | 60,6 | 64,7 | 69,4 |
| e | min. | 32,95 | 35,03 | 39,55 | 45,2 | 50,85 | 55,37 | 60,79 | 66,44 | 72,09 | 76,95 | 82,6 |
| h | nominal= max. | 20 | 22 | 24 | 27 | 30 | 33 | 36 | 39 | 42 | 45 | 48 |
| min. | 18,7 | 20,7 | 22,7 | 25,7 | 28,7 | 31,4 | 34,4 | 37,4 | 40,4 | 43,4 | 46,4 | |
| m | min. | 14 | 15 | 15 | 17 | 19 | 22 | 25 | 27 | 29 | 32 | 36 |
| m´ | min. | 11 | 12,2 | 13,2 | 14,8 | 16,5 | 18,2 | 19,8 | 21,5 | 23,1 | 24,8 | 26,5 |
| s | nominal= max. | 30 | 32 | 36 | 41 | 46 | 50 | 55 | 60 | 65 | 70 | 75 |
| min. | 29,16 | 31 | 35 | 40 | 45 | 46 | 53,8 | 58,8 | 63,8 | 68,1 | 73,1 | |
| Weight (7,85Kg/dm3) kg/1000pcs | 65 | 75 | 100 | 162 | 212 | 317 | 415 | 499 | 628 | 771 | 998 | |
