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The Fasteners Mart is a well-known Mumbai, India-based firm manufacturing and supplying high-grade lock nuts adapted to numerous industrial applications. The lock nuts are highly rated in terms of performance and reliability and are designed to resist vibration loosening and provide a secure, firm connection. Whatever the industry is – automotive, construction, or machinery – The Fasteners Mart delivers precision-made lock nuts equivalent to international standards. With a focus on quality and customer satisfaction, they assure on-time delivery and competitive price, thereby becoming a trusted partner for all fastening solutions.
Lock nuts are typically made of high-strength materials such as steel, stainless steel, or alloy steel that offer enhanced toughness and corrosion resistance. It can have carbon (0.25-0.5%), chromium (12-18%) for corrosion resistance, and manganese (0.8-1.2%) for strengthening. Phosphorus or sulfur can be added in some lock nuts for improved performance. Mechanical properties include tensile strength ranging from 700 MPa to 1200 MPa, yield strength of up to 500 MPa, and high ductility for secure fastening. These properties enable lock nuts to attain stability and reliability when subjected to pressure and vibration.
| 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 |
To satisfy our clients needs by providing high quality products at competitive price as per the schedule and to maintain long term relationship with our clients.
Lock nuts are widely used in numerous industries for their ability to withstand loosening due to vibration, delivering a secure and consistent fastening. In the automobile industry, lock nuts are utilized in engine components, suspension assemblies, and chassis parts. Lock nuts are required in the construction industry to fasten structural elements, equipment, and heavy equipment. They are also widely applied in machinery manufacturing, oil and gas, and aerospace, where close bonds under high stress and vibration must be sustained. Their flexibility makes them ideal for applications requiring long-term reliability and mechanical failure resistance in harsh environments.
At The Fasteners Mart, lock nuts undergo strict quality tests to ensure that they meet precise dimensional and performance standards. Each nut is tested for tensile strength, thread tolerance, and vibration resistance. For secure and safe delivery, lock nuts are packaged securely in durable materials such as plastic bags, cartons, or wooden boxes, which shield them from damage during transit. Proper labeling and identification are addressed for traceability, ensuring the delivery is seamless, whether domestic or foreign.
The Fasteners Mart is a leading manufacturer and supplier of high-quality fasteners in Mumbai, India, with over 8 years of experience serving global industries.
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