Premium Alloy Steel Fasteners by Ratnadeep Steel & Engg. Co.
Ratnadeep Steel & Engg. Co. is a leading manufacturer, exporter, and supplier of premium-quality Alloy Steel Fasteners in various grades. Manufactured from high-quality alloy steel using advanced processes, our fasteners ensure superior strength, dimensional accuracy, and long-term reliability for critical applications requiring high load-bearing capacity and durability.
Alloy steel fasteners are widely preferred for their enhanced mechanical strength, toughness, and wear resistance. They offer excellent performance under high stress, pressure, and temperature conditions, making them suitable for demanding industrial and structural applications. Different alloy compositions allow selection based on specific strength and service requirements.
With precise threading, quality surface finishing, and tight tolerances, our alloy steel fasteners deliver dependable performance under vibration, heavy loads, and thermal stress. They are ideal for construction, infrastructure, heavy machinery, automotive, oil & gas, power generation, and general engineering applications.
Our Range of Alloy Steel Industrial Fasteners
- ASTM A194 Alloy Steel Hex, Heavy Hex & Lock Nuts
- Grades include 2H, 2HM, B7 & B7M alloy steel nuts
- High tensile strength with excellent load-bearing capacity
- Widely used in pressure vessels, flanges & structural joints
- ASTM A193 Alloy Steel Hex & Heavy Hex Bolts
- Available in B7, B7M, B16 & high-strength grades
- Designed for high-temperature & high-pressure service
- Used in oil & gas, petrochemical and power industries
- ASTM A193 / A194 Alloy Steel Cap & Set Screws
- Socket head, button head & hex head screw options
- Excellent hardness, wear resistance & torque strength
- Used in machinery, tooling and heavy equipment assembly
- ASTM A193 / A194 Alloy Steel Washers
- Spring lock, split, plain & ogee washer options
- Ensures load distribution and vibration resistance
- Suitable for heavy-duty structural bolting systems
- ASTM A193 Alloy Steel Stud Bolts
- Single end, double end & fully threaded studs
- Grades B7, B7M & B16 for pressure applications
- Commonly used in flanges, valves & pipe joints
- ASTM A193 B7 & A194 2H Alloy Steel Threaded Rods
- Fully threaded and cut-to-length stud rods
- High tensile strength with precise thread accuracy
- Used for anchoring, supports & heavy structural works
SPECIFICATION OF ALLOY STEEL FASTENERS
| Specification | ASTM / ASME A/SA 193 / 194 |
|---|---|
| Dimension Standards | DIN, ISO, ASTM, JIS, BS, GB, IS and all International Standards |
| Size Range | M3 – M56 | 3/6" to 2" | Custom Sizes |
| Length | 3 mm to 200 mm |
| Grades | B6, B7, B7M, B16, 2, 2HM, 2H, GR 6 |
| Types | Nuts, Bolts, Screws, Sockets, Studs, Hex Set Screws, Socket Screws, Cap Screws, Pan Head Screws, Machine Screws, Socket Head Cap Screws, Allen Cap Screws, Wing Screws, Washers, Spring Washers, Studs, Anchors, Marine Anchors, Hexagon Nuts, Hex Nuts, Coupling Nuts, Hex Domed Cap Nuts, Square Nuts, Stud Bolts, Hex Head Bolts, Socket Hexagon Head Screw Anchor Bolts, U-Bolts, J-Bolts, Mushroom Head Square Neck Bolts, T-Head Bolts, Eye Bolts, Foundation Bolts, Structural Bolts |
💡 Practical Difference in Use
Use Alloy Steel Fasteners when: very high strength, superior fatigue resistance, and reliable performance under heavy loads or high temperatures are required in critical industrial or structural applications. → Example: heavy machinery, pressure equipment, automotive components, power plants, and high-stress structural projects.
Applications of Alloy Steel Fasteners
Alloy steel fasteners are engineered for high tensile strength, toughness, and wear resistance. These high-performance fasteners are ideal for demanding environments where durability, load-bearing capacity, and long service life are essential.
- Construction & Infrastructure: High-strength structural joints, steel frameworks, and bridges.
- Industrial & Manufacturing: Heavy equipment assembly, plant machinery, and maintenance applications.
- Automotive & Heavy Equipment: Engines, suspension systems, and load-bearing components.
When to Choose Alloy Steel Fasteners?
Alloy steel fasteners are selected for high-stress applications requiring superior mechanical strength, heat resistance, and long-term durability.
Choose Alloy Steel Fasteners when:
- Very high tensile and shear strength is required
- High-load or high-pressure fastening is involved
- Exposure to heat or dynamic stress is expected
- Used in critical or safety-related applications
- Long service life under heavy-duty conditions is needed
Industries That Use Alloy Steel Fasteners
Alloy steel fasteners are widely used in industries that require high-strength fastening solutions for demanding and safety-critical environments.
Used in high-strength structural connections.
Uses
Bridges, high-rise buildings, and heavy steel structures.
Why Alloy Steel Fasteners?
Superior strength and fatigue resistance.
Ideal for high-pressure and high-temperature environments.
Uses
Pressure vessels, drilling equipment, and energy plants.
Why Alloy Steel Fasteners?
Excellent load-bearing capacity and heat resistance.
Used in critical mechanical assemblies.
Uses
Engines, transmissions, and suspension systems.
Why Alloy Steel Fasteners?
High fatigue strength and durability.
Suitable for high-temperature service.
Uses
Turbines, boilers, and power plant equipment.
Why Alloy Steel Fasteners?
Reliable performance under thermal and mechanical stress.
Usage Guide for Alloy Steel Fasteners
Designed for high-strength mating with bolts in critical joints.
Choose Alloy Steel Nuts when
- Very high-strength and vibration-resistant fastening is required
- Used in heavy-duty or safety-critical assemblies
- High load-bearing capacity is necessary
- Durable fastening under stress is needed
High-performance fastening for extreme load conditions.
Choose Alloy Steel Bolts when
- High tensile and shear strength is essential
- Used in structural, automotive, or industrial applications
- Exposure to dynamic loads or heat is expected
- Reliable long-term fastening is critical
Strong and durable fastening for demanding materials.
Choose Alloy Steel Screws when
- High holding and pull-out strength is required
- Used in metal or heavy-duty assemblies
- Applications involve vibration or stress
- Long service life is important
Improves load distribution in high-stress joints.
Choose Alloy Steel Washers when
- Load distribution under heavy torque is required
- Joint stability is critical
- Vibration loosening must be minimized
- Used in high-strength bolted connections
Engineered for high-pressure flange connections.
Choose Alloy Steel Stud Bolts when
- High-pressure or high-temperature service exists
- Used in oil & gas, petrochemical, or power plants
- Precise flange alignment is required
- High-strength fastening is essential
Versatile fastening for heavy-duty support systems.
Choose Alloy Steel Threaded Rods when
- Custom-length high-strength fastening is needed
- Used in structural supports and anchoring systems
- High load and stress resistance is required
- Critical construction or engineering work is involved
Our Industrial Fasteners are manufactured using precision forging and machining processes to ensure excellent dimensional accuracy, strength, and long-term performance. Each fastener undergoes strict quality inspections, including visual and dimensional checks, tensile testing, hardness testing, and thread gauging to verify compliance with specified tolerances.
Comprehensive chemical composition analysis and mechanical property testing are carried out to confirm material integrity and standard conformity. Where required, additional NDT methods such as ultrasonic testing, magnetic particle inspection (MPI), or dye penetrant testing (DPT) are performed to detect surface or internal defects. Controlled forging, heat treatment, and threading processes eliminate issues such as cracks, laps, and thread imperfections.
All fasteners are manufactured and tested in accordance with international standards including ASTM, ASME, ISO, DIN, BS, and IS specifications. Engineered for reliable performance in high-pressure, high-temperature, and corrosive environments, our fasteners are widely used across oil & gas, petrochemical, power generation, construction, and heavy engineering industries.
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