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Shop No- 6B, Ground Floor, Sindhi Ln, opposite Municipal School, Charni Road East, Cawasji Patel Tank, Girgaon, Mumbai, Maharashtra 400004
Email ID -
Physical Address -
Shop No- 6B, Ground Floor, Sindhi Ln, opposite Municipal School, Charni Road East, Cawasji Patel Tank, Girgaon, Mumbai, Maharashtra 400004
Neelkamal Alloys LLP is a leading Bolt Manufacturer in South Africa, serving key cities like Johannesburg, Cape Town, Durban, and beyond. We offer a wide range of bolts, with ready stock available for export and supply across South Africa. We specialize in manufacturing custom bolts tailored to meet our customers’ unique requirements. As one of South Africa’s top producers of large-diameter bolts and nuts, we focus on high tensile and stainless steel grades, as well as fasteners for important projects in the power, renewable energy, wind, and infrastructure sectors throughout the country.
A bolt is a fastener with a spiral thread on the outside, designed to be tightened or loosened by turning. It pairs with a matching nut that has an internal thread. Bolts are commonly used to create a strong connection by combining the clamping force of the nut with the bolt’s ability to securely hold parts together, preventing side-to-side movement. Many bolts have a smooth section, called the grip length, which acts like a pin, strengthening the joint. While this smooth section is often thought to differentiate bolts from screws, the main distinction is how they are used.
Bolt size | M 02 to M 160, Custom Sizes |
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Bolts Length | 3 mm to 200 mm |
Bolt | UNF, BSW, BSF, METRIC, UNC, or as required |
Standard of Bolts | IS1364, ISO 4014, ISO 4017, DIN 933, DIN 931, BS 1083, BS 1768, ASME B18.2.1, JIS B1180, DIN 558, ISO 4018, DIN-EN14399-4, DIN 601, ISO 4016, CSN 21301, EU 24016, DIN 7968, DIN7990, ASME B18.2.1, B18.5 |
Form of Bolts | Hex, Threading, Square, Round as per Gauge Etc. |
Raw materials Source | JSPL, Mukund Steel, Tata Steel, Dhamma Steel, Usha Martin, etc. |
Threads Configuration | ASME B1.1 2A/3A – 2B/3B Inch Unified Threads and B1.13M 6h-6G Metric Coarse Threads |
Certification | Dual Certified As per ASTM & ASME Codes |
Popular Types of Bolts | Hex Bolts, Flange Bolts, Hex Head Bolts, Lag Bolts, Square Bolts, Eye Bolts, U Bolts, T Bolts, Countersunk Bolts, etc. |
Threads | Unless otherwise specified, the threads shall be rolled or cut and tapped horizontally or vertically |
Test Certificate of Bolts | as per EN 10204 / 3.1 Manufacturer Test Certificate |
Additional Certifications | PED 97/23/EC Certified, Merkblatt AD 2000 W2 Certified |
Production process | M24-M100: hot forging, M2-M24: Cold Forging, for custom-made connecting element machining and CNC |
Head drive of Bolts | Six-Lobe, Phillips, Phillips/Slot, Slotted etc |
Packing of Bolts | IN BULK: canton, pallet, Small Boxs / carton/pallet, or customer request |
Surface Coating | PTFE Coated Bolts Phosphate Coating Teflon Coating Zinc Coating Hot Dipped Galvanizing Coating Cadmium Coating Xylon Coating |
Bolts finishing | Coatings & Finishes: Self-Colour, Passivated, Bright Zinc Plated (BZP), Hot Dip Galvanised (HDG), Sherardized, some special one like DACROMET Geometry and Mechanically Applied coating, Dacroment, nickel-plated, anodizing, plated zinc-nickel Zinc (blue, black, yellow, white), black oxide, |