Manufacturer of Extra Large Bolts, Nuts and Screws in India, Check Difference Between Hot Forged Vs Cold Forged

Hot Forged Fasteners

Hot Forged Fasteners

Large diameter Bolts

Large diameter Bolts

Cold Forged Nuts

Cold Forged Nuts


Are you looking for hot forged rivets Suppliers ? Check out our inventory with Price List in mumbai

During hot forging, the metal is shaped with the use of heat, where the workpiece, or in this case the fastener is heated to a temperature that is around 75% of its melting temperature. The Hot Forged Fasteners manufacturers in India work the fastener into the desired shape by use of a single or more external operations. Generally, the external processes used by any hot forged fasteners manufacturer in India on the workpiece or the fastener includes hammering or upsetting, pressing, etc.

As opposed to the hot forging process that uses heat to about 75% of the material’s melting point, cold forging uses room temperature.  So the main difference between the hot forged vs cold forged fastener is the temperature it is forged at. While the manufacturing process that involves cold forged fasteners increases its strength through strain hardening, hot forged fasteners manufacturers use a process that keeps fasteners from undergoing strain hardening at high temperatures.

Hence, there are several benefits of using these hot forged rivets. For instance, the use of a hot forging process will deliver low hardness and high ductility, while the material gaining optimum yield strength properties. During the hot forging process, the cast, coarse grain structure of the metal will break up. And the coarse grains will be replaced by finer grains. This is possible once the size of the ingot has undergone a reduction. Usually, the fasteners are given an additional heat treatment by hot forged bolts manufacturers after it has undergone hot forging.

We produce Extra Large diameters and long lengths Hot Forged fasteners, screws, Nuts and Bolts.Our hot forged socket cap screws, eye bolts, square head Bolts, and csk countersunk nib bolts are available in exotic materials.

We are specialized in the following
  • Hot forged hexagon bolts Large diameters hexagon set screws
  • long lengths socket cap screws
  • hot forged eye bolts
    hot forged bolt blanks
  • M6 (1/2") to M52 (2") Diameter hot forged
  • up to 900mm (36"). hot forged fasteners
  • Large heads Hex Head Bolts
  • Extra Large square head Bolts
  • hot forged CSK countersunk square bolts
  • Large Size plow bolts
  • Hex holding down bolts
  • hot forged cup nib bolts
  • Large size csk countersunk nib bolts
  • Extra Large indented foundation bolts
  • Large hot forged Ajax bolts
  • hot forged Pyramid bolts
  • Large T bolts
  • hot forged petrochemical stud bolts, Nuts and Hex bolts in Grade B8, B8M, L7, L7M,
  • Hot forged Fasteners in exotic materials such as Super Duplex, Inconel, Monel, Hastelloy

What is hot forging ?

It is the way toward framing the state of the metal in hot condition into a foreordained shape. A metal is warmed to the appropriate temperature by fast electric enlistment before it is embedded into a metal piece. bolts are hot produced when the material is too huge in width or it isn't sufficiently pliable.


Hot Forged Fasteners Specification List
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


Have look on our product gallery
Hot Forged Nuts
Hot Forged Bolts
Hot Forged Studs
Hot Forged Round Head Bolts
Hot Forged Eye Bolts
Hot Forged Square Nut


Forging capacity of Hot Forged Fasteners
Forging capacity Maximum length = 800 mm


Applications of Hot Forged Fasteners
  • Petrochemicals
  • Power Generation
  • Aircraft Exhaust Manifolds
  • Pharmaceuticals


Hot Forging Bolt Features
  • Energy Switch Control
  • Fluctuating Resistant
  • The Great Holding of Hot Forging Bolt
  • Tamper-Proof Manufacturing


Supply Range Of Precision and Commercial Fasteners
Diameter Length (mm)
Cold Forged Hot Forged
M04 6 to 40 —-
M05 8 to 75 —-
M06 8 to 100 —-
M08 10 to 100 —-
M10 15 to 300 25 to 300
M12 20 to 300 35 to 400
M14 25 to 300 40 to 400
M16 25 to 300 40 to 3000
M18 25 to 300 50 to 3000
M20 30 to 300 50 to 3000
M22 30 to 300 60 to 3000
M24 40 to 300 60 to 3000
M27 50 to 300 60 to 3000
M30 60 to 300 60 to 3000
M33 —- 70 to 1500
M36 —- 80 to 1500
M39 —- 100 to 1500
M42 —- 100 to 1500
M45 —- 100 to 1500
M48 —- 100 to 1500
M52 —- 100 to 1500
M56 100 to 1500
M60 —- 100 to 1500
M64 —- 100 to 1500
M72 —- 100 to 1500
M80 —- 100 to 1500


Types of Machines and their Capacity available with us
  • 80 KW A capacity Electric Furnace
  • Generator Set 150 KW A
  • Electric Furnace 50 KW A to 120 KW A
  • 200 ton capacity Power Press
  • Copying Attachment
  • Center Less Grinder, up to 60 mm
  • Tool & Die Shop
  • Hydraulic Thread Machine 10 mm to 100 mm
  • 2 ton capacity oil fired furnace
  • 100 ton capacity Power Press
  • 400 ton capacity Knuckle Joint Press
  • CNC Wire Cut
  • Hacksaw Machine up to 350 mm
  • Heat Treatment Furnance
  • Lathe Machine, 6’
  • Salt Spray Chamber
  • Horizontal Milling Machine
  • 150 ton capacity Friction Forging
  • 50 ton capacity Power Press
  •  2 ton capacity Drop Hammer
  • Pillar drilling machine, 50 mm
  • Double Zero ton capacity Screw Forging
  • 100 ton capacity Friction Forging
  • 500 ton capacity Hot Forging Press
  • Welding Set Oil Cooled
  • Pneumatic die grinder
  • Plating & Polishing Section
  • 1.5 ton capacity Drop Hammer1 ton capacity Drop Hammer
  • Hardness testing equipment
  • 1 ton shot blasting machine.
  • VMC Machine
  • CNC Turning Center 850x450x600


Our Capabilities
  • Roll and Cut Threading
  • CNC Production Facility
  • In-house Heat Treatment
  • Forging up to 4" diameter
  • 100% Traceability