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Inconel Bolts & Nuts Suppliers. Inconel Alloy 600, 625, 718 Studs Bolts, Hex Nuts & Bolts

Inconel Bolts, Nuts, Studs & Fasteners


Inconel Nuts & Bolts Manufacturers & Suppliers, Inconel Stud Bolts, Inconel Hex Head Bolts & Nuts, Inconel Threaded Bars with Washers

  • Inconel Fastener Products: Inconel Hex Head Bolts, Inconel U Bolts, Eyelet Bolts, Inconel Hex Nuts, Inconel Washers, Inconel Stud Bolts, Inconel Threaded Rods, Inconel Screws
  • Our Manufacturing Size Ranges from M6 to M100 with Varied Lengths
  • Inconel grades: 600, 601, 625, 718, X750

Metline is a full line manufacturer of Inconel nuts and Inconel bolts in accordance with DIN, ASME, ASTM and ISO standards. Inconel nuts and bolts can be used in service temperatures ranging from cryogenic to 2200°F (982°C). The most commonly used Inconel Alloys for manufacturing nuts and bolts are Inconel 600, Inconel 625 and Inconel Alloy 718.


Specialist Manufacturers & Suppliers of Inconel Bolts, Inconel Nuts & Inconel Fasteners in Inconel Alloys 600, 601, 625, 718

Alloy 600 or Inconel 600, is one of the most popular high temperature alloy and is commonly identified as UNS N06600. Inconel 600 is a non-magnetic nickel-chromium alloy, with features of excellent corrosion resistance and mechanical properties, in addition to good weldability under a wide range of temperatures.

Inconel 601 is a nickel-chromium alloy, with an addition of aluminum, which exhibits excellent resistance to high temperature oxidation. The addition of aluminium allows it to demonstrate high mechanical properties even in extremely hot environments.

Inconel 625 is a nickel-chromium-molybdenum alloy, with addition of niobium that acts with the molybdenum to strengthen the alloy’s matrix, resulting in outstanding strength and toughness. Inconel 625 offers high resistance to pitting and crevice corrosion, making it a ideal alloy in chemical processing, marine engineering, oil and gas, and offshore industries.

Inconel 718 is a precipitation-hardenable nickel-chromium alloy, with higher levels of iron, molybdenum, and niobium as well as smaller contents of titanium and aluminium. Used in steam turbines, acid environments, and nuclear engineering, Alloy 600 exhibits high yield strength, and creep-rupture properties at high temperatures.

Equivalents & Grades of Inconel Alloy Bolts, Nuts, Studs & Threaded Bars

Nickel AlloysTradenameUNS no.Werkstoff No.Density (8.8 g/cm3)
Alloy 600Inconel 600N066002.48168.42
Alloy 601Inconel 601N066012.48518.2
Alloy 625Inconel 625N066252.48568.44
Alloy 718Inconel 718N077182.46688.19

Inconel Alloys Chemical Composition %

Alloy 600Ni + CoCrFeCMnSSiCu
72.0 min14.0-17.06.0-10.0.15 max1.00 max.015 max.50 max.50 max
Alloy 601NiCrAlCMnSiFe
Alloy 625CrNiMoCo + NbTaAlTiC
20.00-30.00Remainder8.0-10.01.0 max3.15-4.15.40 max.40 max.10 max
5.0 max.50 max.50 max.015 max.015 max

Inconel Alloys Mechanical Properties

Inconel 600Inconel 601Inconel 625Inconel 718
Density8.4 g/cm³8.1g/cm³8.4 g/cm³8.2 g/cm³
Melting Range,℃1370-1425 ℃1320-1370℃1290-1350℃1260-1340 ℃
Elongation %30min.30 min.30 min.30 min.
Tensile strength – Mpa550min.650min.760min.965min
Yield strength – Mpa240min.300min.345min.550 min.
Brinell hardness (HB)≤195≤220≤220≤363

Additional information


Normal Dia : ¼" to 4" 6-100 mm
Length : As Specified by user or Upto any Length

Surface Finish

Blackening, Cadmium Zinc plated, Galvanized, Hot Dip Galvanized, Nickel Plated, Buffing, P.T.F.E. Coated


Metric, BSW, BSF, UNC, UNF, and as per costumers requirement


A nut is a type of fastener with a threaded hole. Nuts are almost always used opposite a mating bolt to fasten a stack of parts together. The two partners are kept together by a combination of their threads' friction, a slight stretch of the bolt, and compression of the parts.


DIN 6915 CI. 10, Stainless Steel AISI 304 / 316. Heavy hex nuts ASTM A194 Gr.8, 8M
ASTM A 194 Gr. 2H, 2HM, G4, G7, G7M, A563/A563M Gr. A, B, DH / 8S/ 10S.
DIN934 / BS3692 CI.6, 8, 10, 12. BS4395 Part 1 & 2

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