HIGH TENSILE
FASTENERS

A full-scale manufacturer of High Tensile Fasteners, Mangal Industries is a trusted component partner for both automotive and non-automotive industries, serving a wide range of critical applications such as Chassis, Engine, Power Train, Body, Fuel Injection Systems, Industrial and Oil & Gas.

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INDUSTRIES SERVED

STANDARD FASTENERS

The dual benefits of better fatigue resistance and superior strength of our Standard Fasteners have made them a popular choice in the market. The range in this category includes Socket Head Cap Screws, Hexagonal Head Bolts and Hexagonal Nuts. These Fasteners adhere to Indian and several international standards.

  • IS – Indian Standards
  • DIN – German Standards
  • JIS – Japanese Standards
  • ASTM – American Standards
  • BS – British Standards
  • ISO – International Standards

SPECIAL FASTENERS

Personalized as per customer drawings, our special fasteners range constitutes of products for steering, starters, alternators, engine, fuel systems, seating and suspension to name a few. Products with our surface protective finishes are customizable to customer specifications.

ENGINE FASTENERS

This category of Fasteners includes Cylinder Head Bolts/Screws, Flywheel Nuts/Bolts, Connecting Rod Bolts/Nuts, Balance Weight Bolts, Engine Cover Bolts and Main Bearing Cap Bolts, widely used in internal Combustion Engines of Cars, Commercial Vehicles, Two-Wheelers, Farm and Construction Equipment.

CHASSIS FASTENERS

Our Chassis Fasteners range includes Hub/Wheel Bolts, Hub Nuts, Wheel Studs, Suspension Bolts, Shoulder Bolts, Propeller Shaft Bolts/Nuts, Centre Bolts, Track Shoe Bolts/Nuts, Rivets and two-wheeler Spindles/Wheel Axles. These are applied in the undercarriage of Automobiles, Farm, Construction and Heavy Earthworks Engineering Equipment.

PRODUCT PORTFOLIO

Products

Socket HeadCap Screws

Grade : 8.8, 9.8, 10.9, 11.9, 12.9

Diameter : Metric - M4 - M16

Length : Metric - 8-135 (upto M12 - Length 260mm)

Reference Standards :

  • IS - 2269
  • ISO - 4762
  • DIN - 912
  • JIS - B 1176
  • BS
    i. 4168
    ii. 2470
  • ANSI - B 18.3.1 M

Features :

  • Controlled hex socket for maximum wrenching strength
  • Uniform socket depth for accurate key fit & higher torque
  • Knurled head for finger grip fast assembly
  • Smooth fillet radius to withstand head soundness
  • Formed threads with improved root radius provide greater strength to threads
  • Uniform & uninterrupted grain flow for greater strength
  • Controlled mechanical properties for higher strength

Products

Socket Countersunk Head Screws

Grade : 8.8,10.9, 12.9

Diameter : M4 - M16

Length : 10 - 60 mm

Reference Standards :

  • IS - 6716
  • DIN - 7991
  • BS
    i. 4168
    ii. 7894
  • ANSI - B 18.3.5 M

Features :

  • Perfect angle under the head ensures flush seating
  • Controlled hex socket for maximum wrenching strength
  • Smooth fillet radius to withstand head soundness
  • High-grade alloy steel for good strength & wear resistance
  • Uniform socket depth for accurate key fit & higher torque
  • Closely controlled threads under radius root process proper fit & depth assemblies
  • Controlled mechanical properties for higher strength
  • Controlled concentricity in totality to create a high resistance to lateral movements

Products

Socket Button Head Cap Screws

Grade : 8.8, 10.9, 12.9

Diameter : M4 - M12

Length : 10 - 50 mm

Reference Standards :

  • ISO - 7380
  • DIN - 9472
  • BS
    i. 4168
    ii. 2470
  • ANSI - B 18.3.4 M

Features :

  • Controlled hex socket for maximum wrenching strength
  • Uniform socket depth for accurate key fit & higher torque
  • Smooth fillet radius to withstand head soundness
  • Formed threads with improved root radius provide greater strength to threads
  • Uniform & uninterrupted grain flow for greater strength
  • Controlled mechanical properties for higher strength
  • High-grade alloy steel for good strength & wear resistance
  • Smooth radius head ensures easy handling to the user
  • Controlled concentricity in totality to create a high resistance to lateral movements

Products

Hex Head Bolts

Grade : 4.6, 5.8, 6.8, 8.8, 9.8, 10.9, 11.9, 12.9

Diameter :

  • M4 - M18
  • ¼” - ⅝”

Length :

  • 10 - 150 mm (up to M12 - Length 270mm)
  • 1 ½” - 6”

Reference Standards :

  • IS - 1364
  • ISO - 4014
  • DIN - 931
  • JIS - B 1180
  • BS
    i. 1083
    ii. 1768
  • ANSI - B 18.2.1

Features :

  • Controlled Hexagon for maximum wrenching strength
  • Smooth fillet radius to withstand head soundness.
  • Formed threads with improved root radius provide greater strength to threads
  • Uniform & uninterrupted grain flow for greater strength
  • Controlled mechanical properties for higher strength
  • High quality steel for good strength & wear resistance
  • Controlled concentricity in totality to create a high resistance to lateral movements

Products

Hex Flange Bolts

Grade : 4.6, 5.8, 6.8, 8.8, 9.8, 10.9, 11.9, 12.9

Diameter :

  • M4 – M12
  • 1/4” – 1/2”

Length :

  • 10 - 150 mm (up to M10 length 260mm)
  • 1.2”- 6”

Reference Standards : As per customers' specific requirements

Features :

  • Controlled Hexagon for maximum wrenching strength
  • Extruded Hex gives more strength
  • Smooth fillet radius to withstand head soundness
  • Formed threads with improved root radius provide greater strength to threads
  • Uniform & uninterrupted grain flow for greater strength
  • Controlled mechanical properties for higher strength
  • High quality steel for good strength & wear resistance

Products

Engine Fasteners

Grade : 10.9, 11.9, 12.9

Diameter : M6 – M16

Length :

  • 25 to 150mm (up to M12 length 260mm)

Reference Standards : As per customers' specific requirements

Features :

  • Uniform profile for better fitment.
  • Shank & U’ cut profile engineered to meet customer requirement
  • Neck designed for accurate seating
  • Closely controlled shank diameter tolerance for better fit
  • Hard rolled threads with improved root radius provide greater strength to threads
  • Uniform profile to withstand extra torque
  • Parts are undergone to MCD
  • Controlled mechanical properties for higher strength
  • High-grade alloy steel for good strength & wear resistance

Products

Special Fasteners

Grade : 4.6, 5.8, 6.8, 8.8, 9.8, 10.9, 11.9, 12.9

Reference Standards : As per customized requirements

Features :

  • 12 point configuration for faster assembly production rate. Virtually eliminates camout & assures proper seating torque
  • Specialised secondary operations. Latest computer controlled equipment for cost-effective specialised secondary machining capabilities
  • Centreless grinding equipment are utilised for production of close tolerance and smooth surface finish
  • Roll threaded as opposed to thread cutting for stronger, precise radius root & run-out threads for increased fatigue capability

Products

Wheel/Hub Bolts

Grade : 8.8,10.9, 11.9, 12.9

Diameter : M4 – M12

Length : Up to 120mm

Features :

  • Uniform knurling for better fit & resistance to rotate
  • Neck designed for accurate seating
  • Closely controlled shank diameter tolerance for better fit
  • Formed threads with improved root radius provide greater strength to threads
  • Controlled mechanical properties for higher strength
  • High-grade alloy steel for good strength & wear resistance

Products

Hex & Flange Nuts

Grade : 5, 8

Size :

  • Hex Nut –M6 to M10
  • Flange Nut-M6 to M8

Reference Standards :

  • ISO - 4032
  • ISO - 4161 Hex and
  • DIN - 931

Features :

  • Controlled Hexagon for maximum wrenching strength
  • Smooth fillet radius to withstand head soundness
  • Formed threads with improved root radius provide greater strength to threads
  • Controlled mechanical properties for higher strength
  • High quality steel for good strength & wear resistance

Products

Studs

Grade : 8.8, 10.9, 12.9

Diameter : M6 – M16

Length : 25 to 150mm ( up to M12 length 260mm)

Reference Standards :

  • IS 1862

Features :

  • Closely controlled shank for better fitment
  • Formed threads with improved root radius provide greater strength to threads
  • Controlled mechanical properties for higher strength
  • High quality steel for good strength & wear resistance.
  • Controlled concentricity between both threaded ends for better fitment

THE MANGAL ADVANTAGE

Precision engineering and high quality manufacturing, coupled with nimble logistics and prompt delivery constitute an added value to our Fasteners range, thus, giving our customers the Mangal Advantage.



MANUFACTURING

With a capacity of 10000 MTPA, the Fastener manufacturing processes have been carefully formulated and optimized over a decade, to meet and exceed quality, cost & delivery expectations for our customers. We provide custom-made solutions, keeping in mind customer specifications and applications. Our collaborative approach and emphasis on the customer's precise requirements and value addition in terms of design and process optimization help in successfully rolling out new products as per APQP. Our manufacturing facility is completely integrated, spanning wire drawing, annealing, cold forging, continuous heat treatment, secondary machining, finishing and inspection all under one roof.

We invest continuously in new technologies for engineering and manufacturing process optimization. Our evolving capabilities have enabled us to not only upgrade and improve our existing product lines but also introduce new ones with contemporary design and technology, comparable with the best in the world. The state-of-the-art plating facility with multiple lines offers various surface finishes as per industry requirements.

  • In-house wire drawing and annealing facility to ensure raw material quality.
  • Brand new imported multi-station bolt and nut formers to produce consistent quality Fasteners.
  • Fully equipped laboratory to inspect and certify products as per customer specifications and standards.
  • Fully automatic computerized mesh belt hardening and tempering furnace with controlled atmosphere.
  • In-house secondary operations like CNC machining, centerless grinding and circular rolling.

All input raw material required to produce Fasteners is processed using industry best practices at our wire processing facility. The raw material is sourced from established and approved suppliers in the form of coils.

  • RM wires are first collected at wire drawing.
  • Inspection of RM is carried out using various tests at the plant.
  • Pickling, Phosphating, drawing and annealing operations are done as per specifications.
  • Ready-to-forge wires are moved to forging area.

Our cold forging machines are from international brands with state-of-the-art features and hence, facilitate quick set-up change overs.

High speed flat and circular thread rolling machines with precise output.

Heat treatment is a critical process in Fasteners manufacturing. The consistency of heat treatment determines the quality of Fasteners. At Mangal, we have world-class continuous mesh belt furnaces with SCADA controls.

Secondary operations such as turning, grinding, drilling, facing etc. are done on CNC and centerless grinding machines.

With multiple plating lines and continuous processing, we are currently offering surface treatments in -

  • Zinc Phosphating
  • Zinc Trivalent/Hexavalent Plating (Blue/Green/Yellow)
  • Zinc Iron Plating
  • ZAC and Zn-Ni


PLATING FACILITY



ENGINEERING

Our in-house engineering team possesses exceptional capabilities in tool design based on customer drawings and specific requirements. We minimize secondary operations by providing high productivity & better tool life. The complete mechanical testing process from raw material to in-process to the final product, adheres to national & international standards. Multi-station cold forging, latest rolling machines, and fully-automated SCADA operated continuous mesh belt furnace can produce various types of High Tensile Fasteners.

Our engineering team’s collaborative approach allows us to play an active role in product design, innovation and development where application, cost, quality, productivity and lead time recommendations are highly prioritized. We ensure our developed products meet the specific requirements in their new applications. With advanced capabilities in product design, development & manufacturing, we bridge the gaps of application engineering in customer assembly lines and deliver unique value to our customers.

TESTING

QUALITY ASSURANCE

We at Mangal Industries place unwavering focus on providing highest quality products and solutions and complete customer satisfaction. Quality is in our DNA and integrated into all our processes such as design, development, manufacturing, testing and customer service. Comprehensive quality systems are laid down and practiced right from raw material to in-process to final products to ensure products are manufactured in compliance with National & International Standards. Continual improvements and upgradations in our inspection and testing facilities ensure product quality, durability, and reliability. Through the Amara Raja Way ® , our aim is to exceed the customers’ expectations. To accomplish, we will focus on:

ADDING VALUE TO BUSINESSES

Strengthening relationships with our valued customers through product and service excellence.

ADDING VALUE TO BUSINESSES

Strengthening relationships with our valued customers through product and service excellence.