Majid Fasteners stands out as a top manufacturer and supplier in Dubai, UAE, offering high-quality Lock Nuts that are specifically designed to provide outstanding vibration resistance and secure fastening in tough environments. Renowned for their precision, durability, and reliable performance, these lock nuts come in a variety of materials, including stainless steel, carbon steel, alloy steel, and high-tensile grades, all crafted to meet international standards. Majid Fasteners guarantees that each lock nut delivers a superior grip, preventing loosening even under dynamic loads. Trusted by industries such as construction, automotive, oil and gas, petrochemical, and machinery, their lock nuts are engineered to enhance safety and reliability in critical fastening applications.
Lock Nuts are made from materials like carbon steel, alloy steel, stainless steel (304/316), brass, and high-tensile grades. Depending on the material, their composition can include elements like carbon, chromium, nickel, manganese, silicon, and molybdenum. Thanks to their locking mechanism—whether it’s nylon inserts, prevailing torque features, or all-metal designs—these nuts boast excellent mechanical strength, high tensile properties, and superior vibration resistance. The stainless steel variants are particularly noted for their corrosion resistance. Their robust mechanical properties ensure secure fastening, even in the face of extreme pressure, temperature changes, and heavy vibrations.
| 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 |
| 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 |
Lock Nuts find their place in a variety of applications where preventing loosening due to vibration or motion is crucial. You’ll often see them in automotive systems, machinery, railways, and construction frameworks. In the oil and gas and petrochemical sectors, they’re essential for pumps, pipelines, flanges, and heavy-duty equipment that face dynamic loads. Electrical installations, aerospace applications, and industrial assemblies depend on lock nuts for safety-critical joints. Their ability to maintain a strong clamping force makes them the perfect choice for these demanding environments.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
