Hastelloy Screws

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Hastelloy Screws Manufacturer and Supplier in Kolkata, India

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Rinku Fasteners, based in Kolkata, India, is a leading manufacturer and supplier of premium Hastelloy Screws, serving diverse industrial sectors with precision and reliability. Renowned for its commitment to quality, the company produces screws that combine strength, corrosion resistance, and durability, meeting both domestic and international standards. Each screw is carefully crafted from high-grade materials using advanced manufacturing techniques to ensure consistent performance even in demanding environments. With a focus on customer satisfaction, timely delivery, and technical support, Rinku Fasteners has earned a reputation for providing reliable fastening solutions that perform exceptionally in chemical, marine, and high-temperature applications.

 

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Hastelloy Screws are primarily made from nickel-based alloys, enriched with molybdenum, iron, cobalt, and small amounts of copper and tungsten, which enhance corrosion resistance and mechanical strength. These screws exhibit exceptional resistance to oxidizing and reducing environments, including strong acids and high-temperature conditions. They offer high tensile strength, good toughness, and excellent durability under stress, making them ideal for challenging applications. Their ability to withstand thermal cycling, pitting, and crevice corrosion ensures long-lasting performance in aggressive chemical and industrial environments, providing both reliability and safety in critical fastening applications.

 

Hastelloy Screws Specifications

Standard IS, ANSI, ASTM DIN, ISO, JIS, GB, ASME, BS, UNI and all International Standards
Threads: BSF, UNF METRIC, UNC, BSW or as required
Standard ANSI – American National Standards Institute
  • SS Stud Bolt length are defined in ASME B16.5 standard
  • ANSI B 28.2.4 1M
  • ANSI B 18.2.4 2M
  • ASME B18.5
  • SS Hex nuts are defined in ASME B18.2.2
DIN:DIN 933, DIN 931, DIN 970, DIN 934 UTS – Unified Thread Standard : UNF, NPT, NPTF, UNS, UNC, UNEF ISO – International Organization for Standardization ISO 4033, : ISO 4032, JIS standards
Fasteners/ Bolts Size M10, M4, M16, M36 M2.5, M6, M30, M12, M8, M14, M2, M3, M20, M24, M5 to M160
Length 3 mm to 200 mm
Head drive: Phillips, Slotted, Phillips/Slot, Six-Lobe etc
Test Certificate as per EN 10204 / 3.1 Manufacturer Test Certificate
Finishing Zinc white, (yellow, black, blue), black oxide, Dacroment, Geometry, plated zinc-nickel, anodizing, nickel plated, Stainless steel: Passivated Self-Colour, Bright Zinc Plated (BZP), Hot Dip Galvanised (HDG), Sherardized, Stainless Steel, some special one like DACROMET and Mechanically Applied coating
raw materials of Source JSPL, Usha Martin, Tata Steel, Mukund Steel, RINL, Dhamm Steel etc.
Form Square, Hex, Threading as per Gauge, Round Etc.
Process of Production M2-M24: Cold Froging, hot forging M24-M100, machining and CNC for Customized connecting element
Surface Coating
  • Xylon Coated Fasteners
  • Phosphate Coated Fasteners
  • Hot Dipped Galvanizing Coated Fasteners
  • Teflon Coated Fasteners
  • Zinc Coated Fasteners
  • Cadmium Coated Fasteners
  • Ptfe Coated Stainless Steel Fasteners
Packing IN BULK: pallet, canton, carton / Small Boxs / pallet or customer request

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Hastelloy Screws Chemical Composition

Grade C Mn Si Co S Ni Cr Fe Mo W V P
Hastelloy Fasteners 0.010 max 1.0 max 0.08 max 2.5 max 0.03 max Bal 14.5 – 16.5 4 – 7 15 – 17 3 – 4.5 0.35 max 0.04 max

Hastelloy Screws Mechanical Properties

Element Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
Hastelloy Fasteners 8.89 g/cm3 1370 °C (2500 °F) Psi – 1,15,000 , MPa – 790 Psi – 52,000 , MPa – 355 40 %

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Commited to High Quality Service

To satisfy our clients needs by providing high quality products at competitive price as per the schedule and to maintain long term relationship with our clients.

Hastelloy Screws are widely used in industries where corrosion resistance and durability are critical. They are commonly applied in chemical processing plants, marine environments, power generation, petrochemical facilities, and aerospace engineering. These screws perform exceptionally in high-temperature and acidic environments, making them ideal for reactors, heat exchangers, pumps, and valves. They are also used in pharmaceutical, desalination, and offshore oil and gas equipment due to their ability to maintain structural integrity under harsh conditions. Their reliability in aggressive environments makes them a preferred choice for engineers and manufacturers seeking long-lasting, high-performance fastening solutions.

 

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Types of Hastelloy Screws

Hastelloy Screws
Hastelloy Nuts
Hastelloy C Set Screw
Hastelloy Set Screws
Hastelloy Socket Head Cap Screws
Hastelloy Alloy Screws

We take extra care while packing the Hastelloy screws that we offer to our clients at Rinku Fasteners. Every screw is covered with protective material to ensure that they do not get damaged, rust or get contaminated when in transit. We offer reliable packaging in the form of cartons and also have special packaging that meets your requirements. Our products are packed and labeled properly to ensure that identification and handling is done efficiently to show our readiness to provide high quality products in their best state.

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Aerospace Industry
Petrochemical Industry
Defence Industry

Hastelloy Screws Applications