Bolt Manufacturer & Supplier in Kolkata
Bolts Manufacturer & Supplier in Kolkata – Vardhaman INC
Vardhaman Inc is one of the largest Bolts Manufacturer in Kolkata. We specialize in Manufacturing and Supplying Top-quality Bolts. A Bolt is a type of fastener used with a nut to connect two or more parts together. Hex Bolts and Screws have a close connection. We use the finest quality materials, precision, and cutting-edge technology to make Bolts making us a Leading Bolts Supplier in Kolkata.
We also Manufactue and Supply wide range of Bolts along with various grades and dimensions including Hex Bolt, Allen Cap Bolt, U Bolt, & Eye Bolt, etc. Our Bolts have wide domestic usage they are used at the industrial level in many sectors like Petrochemical, Oil & Gas Industries, Water and sewage plants, etc for connections of Flanges and Pipe. We are known as a top Bolts Supplier in Kolkata and other parts of India.
Stainless Steel Bolts Manufacturer in Kolkata – Product Description
Vardhaman INC is an top Bolts Supplier known for its quality products and excellent services. ASME B18.5 Round Head Bolts are used in a variety of heavy-duty and compact applications, hence it is important to choose the correct materials as per application. We are a leading Bolts Manufacturer in Kolkata. We have a team of professionals to choose top-quality raw materials for Bolts. We Supply Bolts in different grades and materials like Alloy Steel, Stainless Steel, ASTM A193 Grade B16 Steel, Mild Steel, High Tensile Steel, Carbon Steel, Duplex, and Inconel. We are also a leading Fasteners Manufacturer in India.
Bolts Specification, Sizes & Grades in Kolkata
Bolts are available in various sizes, Standards, Grade. Each has its Specifications.
| Bolt | Specifications |
|---|---|
| Size | M 02 to M 160, Custom Sizes |
| Length | 3 mm to 200 mm |
| Standards | 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 | Hex, Threading, Square, Round as per Gauge Etc. |
| Types | Hex Bolt, Flange Bolt, Hex Head Bolt, Lag Bolt, Square Bolt, Eye Bolt, U Bolt, T Bolt, Countersunk Bolt, etc. |
| Production process | M24-M100: hot forging, M2-M24: Cold Forging, for custom-made connecting element machining and CNC |
| Head drive of Bolt | Six-Lobe, Phillips, Phillips/Slot, Slotted etc |
| Surface Coating | PTFE Coated Bolt, Phosphate Coating, Teflon Coating, Zinc Coating, Hot Dipped Galvanizing Coating, Cadmium Coating, Xylon Coating. |
| 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, |
Different Types of Bolts Manufacturer in Kolkata
There are several types of Bolts that come in domestic as well as industrial use. The following are the most common types of Bolts we stock and export. We are a reputable Bolts Suppliers in Kolkata.
Bolts Chemical Composition Chart in Kolkata
The chemical composition of Bolts might vary slightly depending on the application, according to fastener manufacturers. Bolts are formed of a mix of carbon, nickel, and chrome.
| Strength class | Material and heat treatment | Chemical composition (analysis of the product) % | Minimum hardening temperature °C | ||||
|---|---|---|---|---|---|---|---|
| C | P | S | B | ||||
| min | max | max | max | max | |||
| 4.6(1) | Carbon steel | – | 0,55 | 0,050 | 0,060 | Not specified | – |
| 4.8(1) | 0,13 | 0,55 | 0,050 | 0,060 | |||
| 5.6 | – | 0,55 | 0,050 | 0,060 | |||
| 5.8(1) | |||||||
| 6.8(1) | 0,15 | 0,55 | 0,050 | 0,060 | |||
| 8.8(2)(3) | Carbon or alloy steel (B, Mn, Cr), quenched and tempered | 0,15(3) | 0,40 | 0,025 | 0,025 | 0,003 | 425 |
| Quenched and tempered carbon steel | 0,25 | 0,55 | 0,025 | 0,025 | |||
| Quenched and tempered alloy steel | 0,20 | 0,55 | 0,025 | 0,025 | |||
| 9.8(2)(3) | Carbon or alloy steel (B, Mn, Cr), quenched and tempered | 0,15(3) | 0,40 | 0,025 | 0,025 | 0.003 | 425 |
| Quenched and tempered carbon steel | 0,25 | 0,55 | 0,025 | 0,025 | |||
| Quenched and tempered alloy steel | 0,20 | 0,55 | 0,025 | 0,025 | |||
| 10.9(3) | Carbon or alloy steel (B, Mn, Cr), quenched and tempered | 0,20(3) | 0,55 | 0,025 | 0,025 | 0,003 | 425 |
| Quenched and tempered carbon steel | 0,25 | 0,55 | 0,025 | 0,025 | |||
| Quenched and tempered alloy steel | 0,20 | 0,55 | 0,025 | 0,025 | |||
| 12.9(4) | Quenched and tempered alloy steel | 0,30 | 0,50 | 0,025 | 0,025 | 0,003 | 425 |
| 12.9(4) | Quenched and tempered carbon steel with the addition of Cr, B, Mn, Mo | 0,28 | 0,50 | 0,025 | 0,025 | 0,003 | 380 |
Bolts Mechanical Properties Chart in Kolkata
It’s essential to understand Bolt’s Mechanical Properties and its specifications. Bolts are intended to support or transmit externally applied loads. Choosing materials based on the mechanical properties of steel bolts is critical.
| Characteristics | Strength class | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 4.6 | 4.8 | 5.6 | 5.8 | 6.8 | 8.8 d≤16mm |
8.8 d>16mm |
9.8 | 10.9 | 12.9 | |||
| Tensile strength Rm (MPa) |
nom | 400 | 400 | 500 | 500 | 600 | 800 | 800 | 900 | 1000 | 1200 | |
| min | 400 | 420 | 500 | 520 | 600 | 800 | 830 | 900 | 1040 | 1220 | ||
| Yield strength Rm (MPa) ReL up to 6.8 – Rp0,2 from 8.8 |
nom | 240 | – | 300 | – | – | 640 | 640 | 720 | 900 | 1080 | |
| min | 240 | – | 300 | – | – | 640 | 660 | 720 | 940 | 1100 | ||
| Elongation after fracture, a% | min | 22 | – | 20 | – | – | 12 | 12 | 10 | 9 | 8 | |
| Necking Z% | 52 | 52 | 48 | 48 | 44 | |||||||
| Vickers hardness (HV) F ≥ 98 N |
min | 120 | 130 | 155 | 160 | 190 | 250 | 255 | 290 | 320 | 385 | |
| max | 220 | 220 | 220 | 220 | 250 | 320 | 335 | 360 | 380 | 435 | ||
| Brinell hardness (HB) F = 30D2 |
min | 114 | 124 | 147 | 152 | 181 | 238 | 242 | 276 | 304 | 314 | |
| max | 209 | 209 | 209 | 209 | 238 | 304 | 318 | 342 | 361 | 414 | ||
| Rockwell hardness HRB up to 6.8 – HRC from 8.8 |
min | 67 | 71 | 79 | 82 | 89 | 22 | 23 | 28 | 32 | 39 | |
| max | 95 | 95 | 95 | 95 | 99,5 | 32 | 34 | 37 | 39 | 44 | ||
| Resilience KV (J) – 20°C(1) | min | – | – | 27 | – | – | 27 | 27 | 27 | 27 | 27 | |
Applications and Uses of Bolts in Kolkata
- Used in Oil & Gas Industry
- Used in Power Plant
- Used in Marine Industry
- Used in Petrochemical Industry
- Used in Aerospace Industry
- Used in Food Processing Industry
- Used in Ship Building Industry
Additional Information: Delivery, Packaging, Dispatch Location in Kolkata
- Payment Modes: LC (Letter of Credit), TT (Telegraphic Transfer or Wire Transfer), Cheque, and others
- Packaging: is packaged with caution and safety so they reach our clients as well as they would expect. Packaging Charges Extra.
- Port of Dispatch: Mumbai or Nhava Sheva ports in the Maharashtra state of India.
- Tax:18% GST
Client Projects for Bolts Manufacturer in Kolkata
We also provide specially designed Bolts per the client’s requirements and specifications. Order from us for guaranteed fast delivery in India. We are a top-notch Bolt Supplier The main reason is that we have outstanding warehousing and storage facilities for finished and unfinished goods.
| Product supplied | City |
|---|---|
| Bolts for Automobile Industry | Bareilly, Uttar Pradesh |
| Bolts supply | Hosdurg, Kerela |
| Bolts supply for Defence Industry | Banglore, Karnataka |
| Bolts for the aerospace industry | Surat, Gujarat |
Bolts Manufacturer in India – Vardhaman INC
We work with various manufacturers to ensure that we have a vast inventory of fasteners available. As a top Bolts Manufacturer, we understand customer needs well to provide high-quality products that meet industry standards. We supply our hight quality Bolt to cities mention below.
- Bolts Manufacturer in Bangalore
- Bolts Manufacturer in Mumbai
- Bolts Manufacturer in Rajkot
- Bolts Manufacturer in Ludhiana
- Bolts Manufacturer in Kolkata
- Bolts Manufacturer in Pune
- Bolts Manufacturer in Delhi
- Bolts Manufacturer in Gujarat
- Bolts Manufacturer in Ahmedabad
- Bolts Manufacturer in Surat
Top Quality Bolts Exporter – Vardhaman INC
Vardhaman Inc is a well-known Bolts Exporter; we export bolts to the UAE, the USA, Saudi Arabia, and other nations. Our high-quality Bolts, client service, and in-house Bolts processing capabilities have made us the leading Bolts Supplier in India. We export Bolts to more than 25 countries.
- Bolts Supplier in Saudi Arabia
- Bolts Supplier in Oman
- Bolts Supplier in Kuwait
- Bolts Supplier in Netherlands
- Bolts Supplier in Iran
- Bolts Supplier in Qatar
- Bolts Supplier in UAE
- Bolts Supplier in Canada
- Bolts Supplier in United Kingdom
- Bolts Supplier in Mexico
Bolts Manufacturer & Supplier in Kolkata
