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Fastener

Rivulet Industries LLP. is a leading Manufacturer and Exporter of high-quality Fasteners, engineered to meet stringent industry standards. Based in Mumbai, India, we specialize in precision-engineered fasteners that provide reliable and durable solutions for various industrial applications.

Our extensive product range includes Nuts, Bolts, Screws, Sockets, Studs, Washers, and Anchors, available in a variety of sizes, types, and specifications to suit diverse industrial requirements. Whether you need DIN, ASTM, BS, or other international standard fasteners, we offer high-performance solutions that ensure superior strength, corrosion resistance, and durability.

Manufactured using premium-grade materials, our fasteners are designed for high mechanical strength, wear resistance, and superior load-bearing capacity. We supply fasteners in a range of materials, including Stainless Steel, Carbon Steel, Alloy Steel, Duplex & Super Duplex Steel, Nickel Alloys, Brass, Copper, and Titanium. Every product undergoes rigorous quality checks and non-destructive testing (NDT) to ensure high precision, reliability, and long-term performance.

Our fasteners are widely used in industries such as Oil & Gas, Petrochemicals, Power Plants, Shipbuilding, Construction, Chemical Processing, Water Treatment, Automotive, Aerospace, and Heavy Engineering. Designed to perform in high-pressure, high-temperature, and corrosive environments, our fasteners ensure secure, vibration-resistant, and long-lasting connections.

At Rivulet Industries LLP., we offer customization options in terms of sizes, threading, coatings, and materials to meet specific project requirements. Our fasteners are available in standard and custom sizes, including:

Our commitment to quality, innovation, and customer satisfaction ensures that our fasteners contribute to enhanced efficiency, reduced downtime, and long-term reliability in various industrial applications. Whether you require Hex Bolts, U-Bolts, J-Bolts, Stud Bolts, Structural Bolts, Eye Bolts, Cap Screws, or Anchor Fasteners, we provide top-quality solutions tailored to your needs.

Available Grades of Fasteners

Alloy Type Available Grades
Duplex Steel Alloy-2205, Alloy-2304, Alloy-329
Super Duplex Steel Alloy-2507 / F53, Alloy-2507 / F55, Alloy-255
Nickel Alloys Alloy-400, Alloy-K500, Alloy-625, Alloy-718, Alloy-825, Alloy-20, Alloy-C276
Exotic Alloys Alloy-A286, Alloy-X750, Alloy-218, Alloy-254, SS-904L, XM-19

Dimensional Standards of Fasteners

Fastener Type Size Range Length Standards Material Options
Hex Bolts M3 - M56 | 3/6" to 2" 3 mm to 200 mm DIN, ASTM, BS, International Standards SS, CS, AS, Nickel Alloys, Brass, Copper, Titanium
Stud Bolts M3 - M56 | 3/6" to 2" Custom Lengths DIN, ASTM, BS, International Standards SS, CS, AS, Nickel Alloys, Brass, Copper, Titanium
Hex Nuts M3 - M56 | 3/6" to 2" Custom Lengths DIN, ASTM, BS, International Standards SS, CS, AS, Nickel Alloys, Brass, Copper, Titanium
Socket Head Cap Screws M3 - M56 | 3/6" to 2" 3 mm to 200 mm DIN, ASTM, BS, International Standards SS, CS, AS, Nickel Alloys, Brass, Copper, Titanium
Machine Screws M1.6 - M12 3 mm to 200 mm DIN, ASTM, BS, International Standards SS, CS, AS, Nickel Alloys, Brass, Copper, Titanium
Washers M3 - M56 | 3/6" to 2" Custom Sizes DIN, ASTM, BS, International Standards SS, CS, AS, Nickel Alloys, Brass, Copper, Titanium
Spring Washers M3 - M56 | 3/6" to 2" Custom Sizes DIN, ASTM, BS, International Standards SS, CS, AS, Nickel Alloys, Brass, Copper, Titanium
U-Bolts & J-Bolts M3 - M56 | 3/6" to 2" Custom Lengths DIN, ASTM, BS, International Standards SS, CS, AS, Nickel Alloys, Brass, Copper, Titanium
Anchor Bolts Custom Sizes Custom Lengths DIN, ASTM, BS, International Standards SS, CS, AS, Nickel Alloys, Brass, Copper, Titanium
Wing Screws M3 - M56 | 3/6" to 2" 3 mm to 200 mm DIN, ASTM, BS, International Standards SS, CS, AS, Nickel Alloys, Brass, Copper, Titanium
Eye Bolts M3 - M56 | 3/6" to 2" Custom Lengths DIN, ASTM, BS, International Standards SS, CS, AS, Nickel Alloys, Brass, Copper, Titanium
Foundation Bolts Custom Sizes Custom Lengths DIN, ASTM, BS, International Standards SS, CS, AS, Nickel Alloys, Brass, Copper, Titanium
Structural Bolts M3 - M56 | 3/6" to 2" 3 mm to 200 mm DIN, ASTM, BS, International Standards SS, CS, AS, Nickel Alloys, Brass, Copper, Titanium
T-Head Bolts M3 - M56 | 3/6" to 2" Custom Lengths DIN, ASTM, BS, International Standards SS, CS, AS, Nickel Alloys, Brass, Copper, Titanium
Mushroom Head Square Neck Bolts M3 - M56 | 3/6" to 2" Custom Lengths DIN, ASTM, BS, International Standards SS, CS, AS, Nickel Alloys, Brass, Copper, Titanium

Types of Fasteners

Hex Bolts

Hex Bolts are one of the most commonly used fasteners, designed for high-strength and secure fastening in various industrial and construction applications. Featuring a six-sided head, these bolts provide excellent grip and torque for easy installation using a wrench or socket. Hex Bolts are available in multiple materials, coatings, and sizes, making them suitable for industries such as construction, automotive, machinery, and heavy engineering.

Hex Bolts
Key Features:
  • Features a six-sided head for easy tightening with a wrench or socket.
  • Available in various materials, including stainless steel, carbon steel, alloy steel, and specialty alloys.
  • Suitable for high-stress applications in construction, automotive, and heavy machinery.
  • Available in different sizes ranging from M3 to M56 and custom sizes as per industry standards.
  • Manufactured in compliance with DIN, ASTM, BS, and other international standards.


Stud Bolts

Stud Bolts are fully threaded or partially threaded fasteners used for high-strength clamping applications in various industries. Unlike conventional bolts, they do not have a head and are designed to be used with two nuts for a secure fastening. These bolts are widely utilized in flanged connections, pressure vessels, pipelines, and structural applications requiring strong, reliable joints.

Stud Bolts
Key Features:
  • Fully threaded or partially threaded fasteners with no head, secured using two nuts.
  • Available in various materials, including stainless steel, carbon steel, alloy steel, and exotic alloys.
  • Ideal for high-strength applications in pipelines, pressure vessels, and structural assemblies.
  • Available in different sizes ranging from M3 to M56 and custom sizes as per industry requirements.
  • Manufactured as per DIN, ASTM, BS, and other international standards.


Hex Nuts

Hex Nuts are six-sided internally threaded fasteners used in conjunction with bolts, screws, and studs to create secure and strong connections. Designed for high-strength fastening, these nuts provide excellent torque resistance and load distribution. Hex Nuts are available in various materials, finishes, and sizes, making them suitable for industries such as construction, automotive, machinery, and heavy engineering.

Hex Nuts
Key Features:
  • Six-sided internally threaded design for secure fastening with bolts and studs.
  • Available in various materials, including stainless steel, carbon steel, alloy steel, and non-ferrous metals.
  • Provides excellent load distribution and torque resistance for high-strength applications.
  • Manufactured in sizes ranging from M3 to M56 and custom sizes as per industry requirements.
  • Compliant with DIN, ASTM, BS, and other international standards for quality and performance.


Socket Head Cap Screws

Socket Head Cap Screws are high-strength fasteners designed for applications requiring precise and secure tightening. Featuring a cylindrical head with an internal hexagonal drive, these screws allow for easy installation in confined spaces using an Allen wrench or hex key. They are widely used in industries such as aerospace, automotive, machinery, and heavy engineering due to their superior tensile strength and reliable performance.

Socket Head Cap Screws
Key Features:
  • Cylindrical head with an internal hexagonal drive for precise torque control.
  • Made from high-strength materials such as stainless steel, alloy steel, and titanium.
  • Ideal for applications requiring strong, reliable fastening in limited space.
  • Available in metric and imperial sizes, ranging from M3 to M48 and beyond.
  • Manufactured as per international standards like DIN, ISO, ASTM, and BS.


Machine Screws

Machine Screws are precision-threaded fasteners designed for secure and reliable assembly in metal, plastic, and other materials. These screws typically feature a uniform diameter and are used with tapped holes or nuts for fastening applications. Machine Screws are available in a variety of head styles, drive types, and materials, making them ideal for applications in electrical, automotive, machinery, and industrial equipment industries.

Machine Screws
Key Features:
  • Precision-threaded design for use with tapped holes or nuts in assembly applications.
  • Available in multiple head styles, including flat, pan, round, and oval heads.
  • Made from high-quality materials such as stainless steel, brass, carbon steel, and alloy steel.
  • Offered in various drive types, including Phillips, slotted, Torx, and hex.
  • Manufactured to international standards like DIN, ISO, ASTM, and BS.


Washers

Washers are thin, disk-shaped components used to distribute the load of a fastener, reduce friction, and prevent loosening in mechanical assemblies. They come in various types, including flat washers, spring washers, and lock washers, each serving a specific function. Washers are widely used in industries such as construction, automotive, machinery, and electronics to enhance fastening performance and durability.

Washers
Key Features:
  • Evenly distributes load and prevents surface damage from fasteners.
  • Available in different types, including flat washers, spring washers, and lock washers for specific applications.
  • Manufactured from stainless steel, carbon steel, alloy steel, brass, and other materials for durability.
  • Enhances fastening reliability by reducing friction and preventing loosening due to vibrations.
  • Produced in accordance with international standards such as DIN, ISO, ASTM, and BS.


Spring Washers

Spring Washers are specially designed fasteners that provide tension and prevent loosening in bolted assemblies subjected to vibrations and dynamic loads. These washers apply a continuous force to maintain secure fastening, reducing the risk of fastener loosening over time. Available in various designs, including split, conical, and wave washers, they are widely used in industries such as automotive, machinery, aerospace, and construction.

Spring Washers
Key Features:
  • Provides tension and prevents loosening in bolted assemblies.
  • Available in different types, including split, conical, and wave washers for specific applications.
  • Made from stainless steel, carbon steel, alloy steel, and phosphor bronze for enhanced durability.
  • Ideal for use in high-vibration environments such as machinery, automotive, and aerospace industries.
  • Manufactured as per international standards like DIN, ISO, ASTM, and BS for consistency and reliability.


U-Bolts & J-Bolts

U-Bolts and J-Bolts are specialized fasteners designed for securing pipes, cables, and structural elements in various industrial applications. U-Bolts have a U-shaped design with threaded ends, making them ideal for clamping cylindrical objects, while J-Bolts feature a J-shaped hook for anchoring and hanging components. These bolts are commonly used in construction, automotive, plumbing, and marine industries due to their robust holding strength and versatility.

U-Bolts & J-Bolts
Key Features:
  • U-Bolts provide secure clamping for pipes, poles, and round bars.
  • J-Bolts are designed for anchoring and hanging structural components.
  • Manufactured from stainless steel, carbon steel, alloy steel, and galvanized steel for durability and corrosion resistance.
  • Available in standard and custom sizes to meet diverse industry requirements.
  • Widely used in construction, plumbing, automotive, and marine applications.


Anchor Bolts

Anchor Bolts are heavy-duty fasteners designed to secure structures and equipment to concrete foundations. These bolts provide strong, stable anchoring and are essential for ensuring structural integrity in construction and industrial applications. Available in different types such as L-shaped, J-shaped, wedge, and sleeve anchor bolts, they are widely used in bridges, buildings, machinery, and infrastructure projects.

Anchor Bolts
Key Features:
  • Provides secure anchoring of structures and equipment to concrete foundations.
  • Available in various types, including L-bolts, J-bolts, wedge anchors, and sleeve anchors.
  • Made from high-strength materials such as stainless steel, carbon steel, and galvanized steel for corrosion resistance.
  • Designed to withstand heavy loads and high-impact forces in industrial applications.
  • Compliant with international standards such as ASTM, DIN, ISO, and BS for quality and reliability.


Wing Screws

Wing Screws are specialized fasteners designed for tool-free manual tightening and loosening. Featuring large wing-like projections on the head, they allow for easy grip and quick adjustments without requiring additional tools. These screws are widely used in applications requiring frequent assembly and disassembly, such as industrial equipment, machinery, electronics, and furniture.

Wing Screws
Key Features:
  • Features wing-like projections for easy hand tightening without tools.
  • Ideal for applications requiring quick assembly and frequent adjustments.
  • Made from durable materials such as stainless steel, carbon steel, brass, and plastic for various environments.
  • Available in different thread sizes and lengths to meet diverse fastening requirements.
  • Manufactured according to international standards like DIN, ISO, ASTM, and BS.


Eye Bolts

Eye Bolts are heavy-duty fasteners featuring a looped head designed for lifting, securing, and anchoring applications. These bolts provide a reliable attachment point for ropes, cables, and chains in construction, marine, rigging, and industrial applications. Available in different types such as plain eye bolts, shoulder eye bolts, and swivel eye bolts, they ensure strong and stable connections in heavy-load conditions.

Eye Bolts
Key Features:
  • Designed with a looped head for secure attachment of ropes, cables, and chains.
  • Available in various types, including plain eye bolts, shoulder eye bolts, and swivel eye bolts for different applications.
  • Manufactured from high-strength materials such as stainless steel, carbon steel, alloy steel, and galvanized steel for durability and corrosion resistance.
  • Suitable for lifting, rigging, anchoring, and securing loads in construction and industrial settings.
  • Manufactured to meet international standards such as DIN, ISO, ASTM, and BS for quality assurance.


Foundation Bolts

Foundation Bolts are specialized fasteners used for anchoring heavy structures to concrete foundations. These bolts provide exceptional strength and stability, making them essential for securing machinery, steel structures, and industrial equipment. Available in various types, such as L-shaped, J-shaped, U-shaped, and straight anchor bolts, they are widely used in construction, power plants, bridges, and heavy engineering applications.

Foundation Bolts
Key Features:
  • Designed for securing heavy structures and equipment to concrete foundations.
  • Available in different types, including L-bolts, J-bolts, U-bolts, and straight anchor bolts for various applications.
  • Made from high-strength materials such as stainless steel, carbon steel, and galvanized steel for durability and corrosion resistance.
  • Ideal for use in construction, bridges, power plants, and industrial foundations.
  • Manufactured according to international standards such as DIN, ISO, ASTM, and BS for reliability and performance.


Structural Bolts

Structural Bolts are high-strength fasteners designed for connecting steel-to-steel components in construction and industrial applications. These bolts are commonly used in bridges, buildings, and heavy machinery where load-bearing capacity and durability are essential. Structural bolts are available in various grades and coatings to enhance strength, corrosion resistance, and longevity.

Structural Bolts
Key Features:
  • Designed for high-strength applications in steel construction and structural frameworks.
  • Available in different grades such as ASTM A325, A490, and DIN 6914 for heavy-duty performance.
  • Made from carbon steel, alloy steel, and stainless steel with zinc, hot-dip galvanized, or black oxide coatings for corrosion resistance.
  • Provides exceptional tensile and shear strength for load-bearing structures.
  • Manufactured to meet international standards like ASTM, ISO, DIN, and BS for reliability and safety.


T-Head Bolts

T-Head Bolts are specialized fasteners with a T-shaped head designed to fit into T-slots or channels, providing a secure and adjustable fastening solution. These bolts are widely used in construction, machinery, and industrial assemblies where quick and precise positioning is required. T-Head Bolts offer strong and reliable connections in applications such as machine tool fixtures, rail systems, and structural frameworks.

T-Head Bolts
Key Features:
  • T-shaped head allows for easy insertion and secure fastening in T-slots and channels.
  • Ideal for use in machine tool fixtures, construction, rail systems, and industrial equipment.
  • Manufactured from stainless steel, carbon steel, and alloy steel with various coatings for enhanced durability and corrosion resistance.
  • Available in multiple thread sizes and lengths to suit different fastening needs.
  • Compliant with international standards such as DIN, ISO, ASTM, and BS for quality assurance.


Mushroom Head Square Neck Bolts

Mushroom Head Square Neck Bolts are specialized fasteners featuring a low-profile, dome-shaped head with a square neck under the head. The square neck prevents rotation during installation, ensuring a secure and stable fit. These bolts are commonly used in timber construction, railway tracks, and metal structures where a flush finish and strong hold are required.

Mushroom Head Square Neck Bolts

Key Features:
  • Mushroom-shaped head provides a smooth, low-profile finish for safety and aesthetics.
  • Square neck under the head prevents bolt rotation during tightening.
  • Ideal for timber construction, railway tracks, structural frameworks, and metal applications.
  • Available in stainless steel, carbon steel, and alloy steel with various coatings for enhanced corrosion resistance.
  • Manufactured according to DIN, ISO, ASTM, and BS standards for reliability and durability.