Carriage Bolts Manufacturer

Best Butt Weld Fittings Manufacturer in India since 1971.

Teshi Group : Leading Manufacturer, Stockist, Supplier, and Exporter of Carriage Bolts in India.

Teshi Group is a distinguished manufacturer, stockist, supplier, and exporter of high-quality Globe Valves in India, providing exceptional solutions for precise flow regulation in a wide range of industries. Known for their superior control over fluid flow, Globe Valves are designed with a movable disc element and a stationary ring seat to enable accurate throttling and flow modulation, making them ideal for applications that require fine control, such as in chemical processing, oil & gas, power generation, and water treatment. Teshi Group’s Globe Valves are engineered to perform reliably under high pressures and temperatures, offering long-lasting durability and excellent sealing capabilities. Manufactured using premium materials and cutting-edge technology, these valves provide excellent flow characteristics, reducing the risk of cavitation and erosion. With a focus on precision and quality, Teshi Group ensures that each Globe Valve meets international standards for performance, reliability, and safety. Available in both standard and customized configurations, Teshi Group’s Globe Valves are trusted by industries worldwide for their ability to provide superior performance, minimal maintenance, and efficient flow control, even in the most demanding environments.

About Carriage Bolts :-

A Globe Valve is a type of valve commonly used to regulate the flow of fluids in a pipeline. It is designed with a spherical body and a linear motion mechanism that controls the flow by moving a plug or disc (also called a “seat”) into or out of contact with a seat ring. The valve’s operation allows for fine flow control, making it particularly suitable for applications requiring precise throttling or regulation of fluid flow.

The globe valve’s internal structure consists of a valve body, bonnet, stem, and disc, with the fluid passing through the valve in a straight line. When the valve is opened, the plug or disc moves away from the seat, allowing fluid to flow through the valve. Conversely, when the valve is closed, the plug or disc is pressed tightly against the seat, blocking the flow. The valve’s design typically features a stem that moves vertically, providing a straightforward and reliable way to adjust the flow rate.

Globe valves are widely used in industries such as chemical processing, water treatment, power generation, HVAC, and oil and gas, where precise flow control is needed. They are particularly suited for regulating and throttling applications rather than simply on/off flow control, as their design allows for gradual adjustments to the flow rate, providing smooth, consistent regulation.

These valves are available in various materials, including stainless steel, brass, cast iron, and carbon steel, chosen based on the application’s pressure, temperature, and fluid characteristics. Globe valves can handle a wide range of fluid types, from gases and liquids to slurries, and are capable of withstanding high pressures and temperatures.

The main advantages of globe valves include their ability to provide fine control over the flow rate, durability, and versatility. Their design minimizes flow resistance when fully open, but they typically experience higher pressure drops when compared to other valve types. Globe valves are favored in situations requiring precise and consistent flow control, such as in throttling applications, and they offer reliable performance and tight shutoff when closed.

Teshi Group is an ISO certified Carriage Bolts manufacturer & distributor in India.

Carriage Bolts Specification, Grades & Material

	Standard Specifications
Standard	IS/ANSI/ASME/DIN
Size	M3 - M48 and also available in all customized sizes.
Material	MS, Stainless Steel & Aluminium

	Material & Grades
Stainless Steel	Grade: ASTM 182 , ASTM 193, ASTM 194, B8 (304), B8C (SS347), B8M (SS316), B8T (SS321), A2, A4, 304 / 304L / 304H, 310, 310S, 316 / 316L / 316H / 316 Ti, 317 / 317L, 321 / 321H, A193 B8T 347 / 347 H, 431, 410
Duplex & Super Duplex Steel	S31803, S32205
Carbon Steel	ASTM 193, ASTM 194, B6, B7/ B7M, B16, 2, 2HM, 2H, Gr6, B7, B7M
Alloy Steel	Grade: ASTM 320 L7, L7A, L7B, L7C, L70, L71, L72, L73
Nickel Alloy	UNS 2200 (Nickel 200) / UNS 2201 (Nickel 201), UNS 4400 (Monel 400), UNS 8825 (Inconel 825), UNS 6600 (Inconel 600) / UNS 6601 (Inconel 601), UNS 6625 (Inconel 625),UNS 10276 (Hastelloy C 276), UNS 8020 (Alloy 20 / 20 CB 3)

Teshi Group Is A Leading Suppliers of Carriage Bolts

We supply Carriage Bolts to Agra, Ahmedabad, Ajmer, Aligarh, Allahabad, Ambattur, Amravati, Amritsar, Asansol, Aurangabad, Bangalore, Bareilly, Belgaum, Bhavnagar, Bhilai Nagar, Bhiwandi, Bhopal, Bhubaneswar, Bikaner, Chandigarh, Chennai, Coimbatore, Cuttack, Dehradun, Delhi, Dhanbad, Durgapur, Faridabad, Firozabad, Gaya, Ghaziabad, Gorakhpur, Gulbarga, Guntur, Gurgaon, Guwahati, Gwalior, Haora, Hubli and Dharwad, Hyderabad, Indore, Jabalpur, Jaipur, Jalandhar, Jalgaon, Jammu, Jamnagar, Jamshedpur, Jhansi, Jodhpur, Kalyan & Dombivali, Kanpur, Karnataka, Kochi, Kolapur, Kolkata, Kota, Loni, Lucknow, Ludhiana, Madurai, Maheshtala, Malegoan, Mangalore, Meerut, Mira, Bhayander, Moradabad, Mumbai, Nagpur,Nanded Waghala, Nashik, Navi Mumbai, Nellore, Noida, Patna, Pimpri & Chinchwad, Pune, Raipur, Rajkot, Ranchi, Saharanpur, Salem, Sangli Miraj Kupwad, Siliguri, Solapur, Srinagar, Surat, Thane, Thiruvananthapuram, Tiruchirappalli, Tirunelveli, Udaipur, Ujjain, Ulhasnagar, Vadodara, Varanasi, Vasai Virar, Vijayawada, Visakhapatnam, Warangal.

Carriage Bolts Exporter To All Major Cities In The World

We export Carriage Bolts to Seoul, Hanoi, Los Angeles, Rio de, Houston, York, Dammam, Al-Khobar, Bogota, Al-Jubail, Chiyoda, Abu Dhabi, Kuwait Santiago, Perth, Busan, London, Jakarta, Surat, Courbevoie, Dallas, Calgary, Mexico Muscat, Aberdeen, City, Edmonton, Riyadh, Caracas, Ahvaz, Brisbane, Moscow, Milan, Manama, Ulsan, Jaya, Granada, Vung Petaling, Melbourne, Montreal, Port-of-Spain, La Victoria, Istanbul, Janeiro, Karachi, New Singapore, Madrid, Lagos, Atyrau, Sydney, Kuala Dubai, City, Bangkok, Toronto, Gimhae-si, Lumpur, Jeddah, Pimpri-Chinchwad, Tehran, Doha, Ho-Chi-Minh-City, Algiers, Tau, Colombo, Ernakulam, Geoje-si, Cairo, Sharjah, Lahore.

Teshi exports Carriage Bolts in more than 50 countries. We have shipments going out monthly to different countries for our newly acquired customers. Our ready stock of Flanges helps us ship the Flange and meet the requirement and demands of our customers as fast as possible.

We Export Carriage Bolts to United States (USA), Canada, Germany, Japan, France, Middle-East, Bangladesh, Nepal etc.

Product
Export

Frequently Asked Questions

Most frequent questions and answers

What are carriage bolts?

Carriage bolts are a type of fastener with a smooth, rounded head and a square or hexagonal shank beneath the head. They are commonly used in wood, metal, or other materials where a smooth surface is desired on one side of the joint.

What is the purpose of the square neck on a carriage bolt?

The square neck under the rounded head of a carriage bolt is designed to prevent the bolt from rotating when the nut is tightened. This ensures that the bolt remains stationary while the nut is secured on the opposite side.

What materials are carriage bolts made from?

Carriage bolts are typically made from carbon steel, stainless steel, or alloy steel. They can also be coated with zinc or other finishes for increased resistance to corrosion.

What sizes are available for carriage bolts?

Carriage bolts come in various sizes, ranging from small bolts for light-duty applications to larger ones for heavy-duty projects. Common lengths range from 1 inch to 6 inches, with diameters from 1/4 inch to 1 inch or more.

Where are carriage bolts typically used?

Carriage bolts are commonly used in applications such as fastening wood to metal, securing fence panels, or joining structural components in construction, furniture assembly, and outdoor furniture projects.

How do you install a carriage bolt?

To install a carriage bolt, insert the bolt through the hole in the material, ensuring the square neck is aligned with the surface. Then, place a washer and nut on the opposite side of the bolt and tighten it with a wrench until secure.

Can carriage bolts be used for outdoor projects?

Yes, carriage bolts are ideal for outdoor applications when properly coated with rust-resistant materials like zinc or stainless steel. This makes them suitable for use in fences, decks, and other exposed structures.

What is the difference between a carriage bolt and a regular bolt?

The main difference is the rounded, domed head of the carriage bolt, which provides a smooth finish on the surface. Regular bolts may have hexagonal heads, which are designed for use with a wrench or socket.

How do you choose the right size carriage bolt?

To choose the right size, consider the thickness of the materials being fastened and the strength required for the joint. The bolt should be long enough to extend through both materials with enough length left to attach a nut and washer.

Can carriage bolts be used in metal?

Yes, carriage bolts can be used in metal, but they are primarily designed for use in wood and other softer materials. When using carriage bolts in metal, ensure the hole is appropriately sized to allow for proper installation.

Can carriage bolts be reused?

Yes, carriage bolts can generally be reused if they are not damaged or corroded. However, it’s important to check the threads for wear and ensure the bolt and nut are still able to be properly tightened before reusing.

Do carriage bolts come with washers?

Carriage bolts are often sold separately from washers. However, washers are commonly used with carriage bolts to distribute the load and reduce the risk of the bolt pulling through the material. It is recommended to use a washer when installing carriage bolts.

How do you prevent carriage bolts from rusting?

To prevent rust, choose carriage bolts that are made from corrosion-resistant materials such as stainless steel or those with protective coatings like zinc plating or hot-dip galvanization. Additionally, keeping bolts dry and applying a corrosion-resistant lubricant can help reduce rust buildup.

Are carriage bolts available in different head styles?

Yes, carriage bolts typically come with a domed or rounded head. However, some variations may have square or hexagonal heads, depending on the manufacturer or specific application requirements.

Can carriage bolts be used with plastic materials?

Yes, carriage bolts can be used with plastic materials, provided the material is thick enough to hold the bolt securely. For thin plastics, consider using plastic-specific fasteners to avoid cracking or damaging the material.

How do I determine the strength of a carriage bolt?

The strength of a carriage bolt depends on the material it is made from (e.g., carbon steel, stainless steel), the bolt’s diameter, and the grade of the bolt. Bolt strength is often specified in terms of its tensile strength (how much force it can withstand before breaking). Check the manufacturer’s specifications for these details.

What is the load-bearing capacity of a carriage bolt?

The load-bearing capacity of a carriage bolt depends on several factors including its material, size, and grade. High-strength carriage bolts made of stainless steel or alloy steel can handle heavier loads compared to standard carbon steel bolts. Always check the manufacturer’s data or specifications for the appropriate load rating for your specific application.

Are there different grades of carriage bolts?

Yes, carriage bolts come in different grades, such as Grade 2, Grade 5, and Grade 8, each representing different strength levels. Grade 5 and Grade 8 carriage bolts are stronger and suitable for heavy-duty applications. Grade 2 bolts are typically used for lighter applications.

Can I use carriage bolts for structural applications?

Yes, carriage bolts are often used in structural applications such as connecting wood to steel or metal to metal, especially in construction projects like framing, decking, or bridge building. For high-load applications, ensure you’re using the correct grade and material.

How do you remove a carriage bolt?

To remove a carriage bolt, use a wrench to loosen the nut, while supporting the opposite side of the bolt with another tool or by holding the bolt in place. If the bolt is rusted or stuck, applying a penetrating oil or lubricant may help loosen it.

Are carriage bolts suitable for high-temperature applications?

Carriage bolts can be used in high-temperature applications if they are made from heat-resistant materials such as stainless steel or specially treated alloys. For extremely high temperatures, consult the manufacturer’s specifications to ensure the bolts can handle the required conditions.

Can carriage bolts be used in concrete or masonry?

Carriage bolts are generally not suitable for direct use in concrete or masonry without additional anchors or inserts. If you need to use them in concrete, consider using a concrete anchor or expansion bolt along with the carriage bolt to secure it effectively.

What is the difference between a carriage bolt and a coach bolt?

A coach bolt is another name for a carriage bolt in some regions, such as the UK. The terms are used interchangeably, but they both refer to bolts with a rounded head and a square neck. In some cases, coach bolts may have slight variations in sizing or standards, but the design is largely the same.

Can carriage bolts be used with drywall or thin sheet metal?

Carriage bolts are typically not recommended for use with drywall or thin sheet metal, as their large heads and square neck are designed to work better with thicker, more substantial materials like wood or thicker metals. For drywall or thin sheet metal, consider using specialized fasteners like toggle bolts or self-tapping screws.

Are there any environmental conditions where carriage bolts shouldn’t be used?

Carriage bolts may not be suitable for environments that expose them to extreme chemical exposure, very high temperatures, or conditions that could cause corrosion, such as in highly acidic or salty environments. For such conditions, it is important to choose the right material (e.g., stainless steel or titanium) and appropriate coatings for durability.

Can carriage bolts be used in automotive applications?

Carriage bolts are generally not recommended for high-stress automotive applications, where greater strength and vibration resistance are required. For automotive use, consider bolts specifically designed for automotive parts, such as hex bolts, or other specialized fasteners designed to withstand higher torque and dynamic loads.

Do carriage bolts need to be tightened to a specific torque?

Yes, carriage bolts, like all fasteners, should be tightened to the manufacturer’s recommended torque specifications for the application. Over-tightening or under-tightening can result in poor performance, such as the bolt loosening over time or damaging the materials being fastened.

Can carriage bolts be used in marine environments?

Yes, carriage bolts made of marine-grade stainless steel or hot-dipped galvanized steel can be used in marine environments. These materials are resistant to corrosion from saltwater, making them suitable for use in boating, dock construction, or other marine applications.

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Teshi is a one stop solution for all engineering needs. With an experience of over 50 years we tend to provide best in class service, with unmatchable quality.

Carriage Bolts