Shop Hastelloy Fasteners For High-Temperature & Corrosion-Resistant Applications, Get Custom Sizes With Fast Shipping
Nandini Steel is a trusted Hastelloy C276 fasteners manufacturer that performs well in the most extreme working conditions. The fasteners are made of Hastelloy material which is a nickel base alloy with very high corrosion resistance properties especially in all non-oxidising and aggressive chemical environments. As one of the prominent Hastelloy fasteners manufacturers in India,we produce many types of fasteners such as Hastelloy screws, bolts, nuts, washers and studs. Our Hastelloy fasteners are manufactured from quality alloy that we machine and undergo heat treatment processes for quality for good strength, durability and dimension accuracy.

Premium Hastelloy Fasteners Manufacturer in Mumbai – Corrosion-Resistant Bolts, Nuts, Washers & Screws in Grades C22, C276, C2000 at Competitive Prices
Key Features of Hastelloy Fasteners
- Exceptional Corrosion Resistance: Designed to resist very corrosive environments such as acids, seawater and oxidizing agents.
- High Strength & Durability: They provide excellent mechanical strength and sustained performance even in extreme temperatures and pressures.
- Versatile Grades Available: Offered in various grades such as Hastelloy C276 fasteners and Hastelloy C22 fasteners for specific industrial applications.
- Excellent Hastelloy Material Compatibility: These fasteners are compatible with other critical components made from Hastelloy material to ensure durable performance.
- Compliance with Global Standards: Produced according to DIN, ASTM, BS and other international standards to satisfy various industry requirements.
Hastelloy C276 Fasteners vs. Hastelloy C22 Fasteners
Hastelloy C276 fasteners are resistant to strong oxidizers, wet chlorine and chloride-bearing environments. It is widely used in chemical processing, power generation and marine applications where it resists pitting corrosion, crevice corrosion and stress corrosion cracking.
Hastelloy C22 fasteners are better in performance of oxidizing environments such as ferric and cupric chloride and wet chlorine, making them durable in the pharmaceutical and waste treatment industries. Both fastener grades are high performing, C22 is selected when oxidation resistance is needed in greater versatility.
Applications of Hastelloy Fasteners
Hastelloy fasteners are widely used in chemical plants, marine engineering, pulp and paper processing, pollution control equipment and nuclear reactors. Their superior corrosion resistance and mechanical strength make them suitable for harsh environments. These fasteners are also suitable for off-shore and sub-sea applications.
Packaging, Testing & Delivery
We conduct stringent quality control procedures. All Hastelloy fasteners undergo hardness test, dimensional checking and corrosion test resistance. We hold ISO 9001:2015 certification and also offer the products along with all test certificates and reports. Moreover, our all fasteners are also wrapped in wooden boxes and bubble wraps or packed as per client order to safeguard against transit.
Reach us now for high-quality fasteners suitable for your use that last a long time.
Other Types Hastelloy Fasteners

Hastelloy Bolt

Hastelloy Nut

Hastelloy Screws

Hastelloy Washers

Hastelloy Stud Bolts

Hastelloy Anchor Bolts

Hastelloy Studs

Hastelloy Threaded Rod
Hastelloy Fasteners Specification
Standard: ASTM B574 / ASME SB574
Bolt / Screw Size: M3 – M56 | 3/6″ to 2″ | Custom Sizes
Nuts Size: M3 – M56 | 3/6″ to 2″ | Custom Sizes
Washers Size: M3 – M56 | 3/6″ to 2″ | Custom Sizes
Machine Screws Size: M1.6 – M12
Self Tapping Screw Size: No.2 – No.14
Length: 3 mm to 200 mm
Threads: UNF, BSW, BSF, METRIC, UNC, or as required
Fasteners: DIN: DIN 934, DIN 931, DIN 970, DIN 933 , UTS: UNEF, NPT, UNC, UNS, UNF, NPTF , ISO: JIS Standards, ISO 4033, ISO 4032 , ANSI: ANSI B28.2.4 1M (Stud Bolts), ANSI B18.2.4 2M (Hex Nuts) , ASME: ASME B18.5, ASME B18.2.2, B16.5
Form: Hex, Threading, Square, Round as per Gauge etc.
Raw Materials Source: JSPL, Mukund Steel, Tata Steel, Dhamm Steel, Usha Martin, etc.
Threads Configuration: ASME B1.1 2A/3A – 2B/3B Inch Unified Threads, B1.13M 6h-6G Metric Coarse Threads
Certification: Dual Certified as per ASTM & ASME Codes
Dimensions: DIN 931, 933, 934, 7991, 976, 125; ASME B18.2.1, B18.3
Thread Details: Unless otherwise specified, threads shall be rolled or cut and tapped horizontally or vertically
Test Certificate: EN 10204 / 3.1 Manufacturer Test Certificate
Additional Certifications: PED 97/23/EC Certified, Merkblatt AD 2000 W2 Certified
Production Process: M24–M100: Hot Forging , M2–M24: Cold Forging , Custom-made: Machining & CNC
Types: Bolts, Nuts, Stud Bolts, Washers, Threaded Rod, Anchor Fasteners, Eye Bolt, Stud, Cotter Pin, Socket Screw, Fine Fasteners & Spares, Foundation Fasteners, Hexagon Castle Nuts, Hexagon Domed Cap Bolts, Hexagon Thin Nuts etc.
Alloy | Ni | Cr | Mo | Fe | W | Cu | Other Elements |
Hastelloy C276 | Ni: 56-63% | Cr: 14-17% | Mo: 15-17% | Fe: 4-7% | W: 3-4% | – | Co: 2%, Mn: 1%, Si: 0.08%, C: 0.01% |
Hastelloy C22 | Ni: 56-63% | Cr: 20-22% | Mo: 12-14% | Fe: 3% | W: 2-3% | – | Co: 1%, Mn: 1%, Si: 0.08%, C: 0.01% |
Hastelloy B2 | Ni: 60% | Cr: 2.5% | Mo: 29-30% | Fe: 2% | W: 0% | – | C: 0.015%, Si: 0.2%, Mn: 0.3% |
Hastelloy C2000 | Ni: 58-63% | Cr: 22-26% | Mo: 14-16% | Fe: 4% | W: 2% | Cu: 2-3% | Co: 1%, Mn: 1%, Si: 0.5%, C: 0.01% |
Alloy | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HB) |
Hastelloy C276 | 760-1100 | 205-345 | 30-50% | 220-250 |
Hastelloy C22 | 670-1030 | 275-414 | 30-50% | 180-210 |
Hastelloy B2 | 520-760 | 220-290 | 50-60% | 180-230 |
Hastelloy C2000 | 760-1100 | 240-350 | 40-55% | 220-250 |
STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | EN | OR |
Hastelloy C276 | 2.4819 | N10276 | NW 0276 | – | ХН65МВУ | NiMo16Cr15W | ЭП760 |
Hastelloy C22 | 2.4602 | N06022 | NW 6022 | – | – | NiCr21Mo14W | – |
Hastelloy B2 | 2.4617 | N10665 | – | – | – | – | – |
Hastelloy C2000 | 2.4632 | N06200 | NW 6200 | – | ХН60МБ | NiCr23Mo14Cu | – |
Hastelloy Fasteners Nuts and Bolts Metric Hex Bolt Dimensions
NOMINAL SIZE (D) | BODY DIAMETER | HEAD THICKNESS | ACROSS THE FLATS | ACROSS CORNERS | ||||
D (MAX) | D (MIN) | H (MAX) | H (MIN) | F (MAX) | F (MIN) | C (MAX) | C (MIN) | |
m10 Bolts | 10.00 | 9.78 | 6.63 | 6.17 | 17.00 | 15.73 | 18.48 | 17.77 |
m12 Bolts | 12.00 | 11.73 | 7.76 | 4.24 | 19.00 | 17.73 | 20.78 | 20.03 |
m14 Bolts | 14.00 | 13.73 | 9.09 | 8.51 | 22.00 | 20.67 | 24.25 | 23.35 |
m16 Bolts | 16.00 | 15.73 | 10.32 | 9.68 | 24.00 | 23.67 | 27.71 | 26.75 |
m20 Bolts | 20.00 | 19.67 | 12.88 | 12.12 | 30.00 | 29.16 | 34.64 | 32.95 |
m24 Bolts | 24.00 | 23.67 | 15.44 | 14.56 | 36.00 | 35.00 | 41.57 | 39.55 |
m30 Bolts | 30.00 | 29.67 | 19.48 | 17.92 | 46.00 | 45.00 | 53.12 | 50.85 |
m36 Bolts | 36.00 | 35.61 | 23.38 | 21.63 | 55.00 | 53.80 | 63.51 | 60.79 |
m42 Bolts | 42.00 | 41.38 | 26.97 | 25.03 | 65.00 | 62.90 | 75.06 | 71.71 |
m48 Bolts | 48.00 | 47.38 | 31.07 | 28.93 | 75.00 | 72.60 | 86.60 | 82.76 |
m56 Bolts | 56.00 | 55.26 | 36.2 | 33.80 | 85.00 | 82.20 | 98.15 | 93.71 |
m64 Bolts | 64.00 | 63.26 | 41.32 | 38.68 | 95.00 | 91.80 | 109.70 | 104.65 |
m72 Bolts | 72.00 | 71.26 | 46.45 | 43.55 | 105.00 | 101.40 | 121.24 | 115.60 |
m80 Bolts | 80.00 | 79.26 | 51.58 | 48.42 | 115.00 | 111.00 | 132.72 | 126.54 |
m90 Bolts | 90.00 | 89.13 | 57.74 | 54.26 | 130.00 | 125.50 | 150.11 | 143.07 |
m100 Bolts | 90.00 | 99.13 | 63.9 | 60.10 | 145.00 | 140.00 | 167.43 | 159.60 |
Weight Chart For Hastelloy Fasteners
SIZE | OLD SPEC IS 1363/67 | NEW SPEC IS 1363/92 | HEIGHT = DIA NUTS | HEX LOCK NUTS IS 1364-84 | HSS NUTS IS: 6623 | Castle Nuts IS 2232-67 | Nylock Nuts Din 985 | SIZE | HEX NUTS BSW / BSF | HEX LOCK NUTS BSW / BSF | SQUARE NUTS – BSW | ASTM A-194 |
M2 | 0.011 | 1/8″ | 0.041 | |||||||||
M3 | 0.033 | 0.05 | 5/32″ | 0.053 | ||||||||
M4 | 0.067 | 0.112 | 0.1 | 3/16″ | 0.133 | |||||||
M5 | 0.111 | 0.08 | 0.23 | 0.14 | 1/4″ | 0.323 | 0.19 | 0.34 | ||||
M6 | 0.232 | 0.12 | 0.316 | 0.24 | 5/16″ | 0.51 | 0.34 | 0.654 | 0.758 | |||
M7 | 0.294 | 0.396 | 0.3 | 3/8″ | 0.817 | 0.51 | 0.966 | 1.37 | ||||
M8 | 0.482 | 0.3 | 0.735 | 0.51 | 7/16″ | 1.389 | 0.93 | 1.683 | 2 | |||
M10 | 1.02 | 0.909 | 1.282 | 0.67 | 1.58 | 1.06 | 1/2″ | 2.222 | 1.43 | 2.677 | 2.959 | |
M12 | 1.59 | 1.389 | 1.942 | 1.09 | 2 | 1.72 | 5/8″ | 4.348 | 2.7 | 5.04 | 5.263 | |
M14 | 2.4 | 3.049 | 1.68 | 2.7 | 2.6 | 3/4″ | 7.184 | 4.8 | 8.818 | 8.621 | ||
M16 | 3.081 | 3.333 | 3.906 | 1.8 | 6.04 | 3.89 | 3.4 | 7/8″ | 8.621 | 5.6 | 10.917 | 12.658 |
M18 | 4.448 | 5.814 | 2.69 | 5.75 | 4.5 | 1″ | 12.987 | 8.5 | 15.432 | 17.986 | ||
M20 | 6.031 | 6.667 | 7.519 | 3.3 | 11.53 | 7.52 | 6.5 | 1.1/8″ | 18.182 | 11.8 | 23.364 | 26.316 |
M22 | 7.143 | 8.929 | 9.091 | 3.89 | 14.28 | 9.3 | 7.5 | 1.1/4″ | 26.596 | 17.2 | 33.333 | 34.247 |
M24 | 10.309 | 12.5 | 12.821 | 5.1 | 19.77 | 13.1 | 10 | 1.3/8″ | 37.879 | 23 | 44.248 | |
M27 | 15.432 | 18.657 | 8.15 | 28.23 | 19.2 | 16.2 | 1.1/2″ | 45.455 | 28 | 60.241 | ||
M30 | 21.645 | 26.596 | 10.4 | 36.5 | 26.4 | 21.2 | 1.5/8″ | 71.429 | 73.529 |
Hastelloy Fasteners Surface Treatment

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