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  • Monel 400 Hex Bolt

Monel 400 Hex Bolt

  • Material:Monel 400
  • production:Hex bolts


Monel 400 UNS N04400 DIN 2.4360 fasteners hex bolts nuts washers


Monel was created by the International Nickel Company and patented in 1906. The patent has expired and it is available from a variety of sources. Alloy 400 is versatile and is used to resist both acids and alkalis. Seawater applications are common. A variant is Alloy 405 (UNS N04405). It contains slightly more sulfur, which improves machinability.


Monel 400 is a Nickel-Copper high-performance alloy that is resistant to the harsh corrosion and temperatures of seawater, steam at high temperatures, and other caustic solutions. It is particularly resistant to hydrochloric and hydrofluoric acids when they are de-aerated. This material is characterized by good corrosion resistance and has a potential for good weldability. It is slightly magnetic at room temperature but this alloy can be used in a variety of applications


Heavy hex bolts are generally specified for high temperature or high pressure applications, particularly where bolt heads will bear against flanges. Standard diameters are 1/2″ and larger. The main difference between a heavy hex bolt and a regular (or finished) hex bolt is the distance across opposite flats of the hex. Heavy hex bolts are 1/8 of an inch larger than a finished hex bolt of the same diameter. The formula for determining hex size is one-and-a-half times the diameter plus 1/8″.


Approximately 65% nickel, 32% copper.


Monel 400 is widely used in chemical, electrical and saltwater marine applications as well as offshore engineering, salt production, and hydrocarbon processing. This material is available in ASTM B164 Class A.


Hot working on Monel 400 machine screws needs to be done by choosing proper temperatures. Typical temperatures for hot working range between 648-1176°C (1200-2150°F). These Monel 400 hex cap screws, Monel 400 socket head cap screws,Monel 400 Forgings, Monel 400 Rings, Monel 400 Springs, Monel 400 hex nuts, Monel 400 lock nuts could also be easily welded, soldered, and brazed. The most commonly used Monel 400 studs and nuts in process containing hydrofluoric acid is Monel 400 nuts and bolts are used for some applications.


In most water applications when conditions turn and materials need to hold up in tougher, more severe and extremely corrosive environments, Monel 400 fasteners need to be called on. High tensile strength make Monel 400 fasteners perfect for marine use.


The most common type of Monel 400 fastener, a Monel 400 hex head bolt is designed to be tightened with a standard spanner or ratchet and socket. Popularly used in all assemblies, a standard Monel 400 hex bolt is a staple across the world. Manufactured to ISO 4014 or DIN 931, and therefore includes an unthreaded section of the shaft. A hex drive permits a greater torque load to be applied to the joint over most other drive types. Our Monel 400 metric nuts are designed to be used in conjunction with the equivalent sized metric Monel 400 bolts, Monel 400 screws and Monel 400 washers.


Monel 400 Fasteners Specification

Monel 400 Fasteners
M 02 to M 160

3 mmto

200 mm

  • DIN

  • ISO

  • JIS

  • GB

  • IS

  • BS

  • ASTM



Monel Threads: METRIC, BSW, BSF, UNC, UNF or as required
Standard: DIN 933, DIN 931, ANSI, JIS standards
Monel 400 Fasteners In Form of:
  • Hex

  • Square

  • Round

  • Threading as per Gauge Etc.

Head drive: Phillips, Slotted, Phillips/Slot, Six-Lobe, etc
Monel 400 Fasteners Packing: IN BULK :canton/pallet, Small Boxs/carton/ pallet, or customer request
Monel 400 Fasteners Test Certificate: Manufacturer Test Certificate as per EN 10204 / 3.1
Property Class:
  • For Bolts & Screws: A2-70, A2-80, A4-70, A4-80, F593C, F593D, F593G, F593H

  • For Nuts: A2-70, A2-80, A4-70, A4-80, F594C, F594D, F594G, F594H, A2-035, A4-040

  • For SHCS: F837B, F837C, F837E, F837

  • For Threaded Rods: A2-70, A2-80, A4-70, A4-80, F593C, F593D, F593G, F593H, B8, B8M CL1 & CL2

Monel 400 Fasteners finishing: Zinc (yellow, white, blue, black), black oxide,Geometry, Dacroment, anodizing, nickel plated, plated zinc-nickel, Stainless steel: PassivatedSelf-Colour, Hot Dip Galvanised (HDG), Bright Zinc Plated (BZP), Sherardized, Stainless Steel, Mechanically Applied coating and some special one like DACROMET
Production process M2-M24: Cold Froging, hot forging M24-M100,machining and CNC for Customized connecting element
Monel 400 Fasteners Origin and service-region: EuropeanOrigin of Monel 400 Fasteners are Western European. However projects with eastern origin are possible on request.
Monel 400 Fasteners Grades: Monel 400 Fasteners , Monel 405 Fasteners, Monel K500 Fasteners
Surface Coating:
  • Hot Dipped Galvanizing Fasteners

  • Phosphate Fasteners

  • Teflon Fasteners

  • Ptfe Coated Fasteners

  • Xylon Fasteners

  • Zinc Fasteners

  • Cadmium Fasteners




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