Grade 4.6 Bolt Manufacturer & Stockist In India M12, M16 & M20 Ready • Plain, Zinc & Hot Dip Galvanized Working Since 2012 • Shipped To 19+ Countries

Grade 4.6 Bolt

Grade 4.6 Bolt Product Overview

Grade / ClassGrade 4.6, Property Class 4.6
Governing StandardISO 898-1, ASTM F568M, IS 1367-3
Size RangeM6–M36 Stock • To M64 Made-To-Order
ThreadISO 261 Metric Coarse, Class 6g
Tensile / Yield400 MPa Min / 240 MPa Min
Carbon Content0.55% C Max, Carbon Steel
FormsAnchor Bolt, Hex Bolt, Stud, Rod, Screw
MTC CertificateEN 10204 3.1
Delivery TimeStocked: 2–5 Days • Made-To-Order: 3 Wks
OriginIndian, Cold-Forged In-House
ISO Compliant
Recognized Standards
Manufactured to applicable international standards
Consistent Dimensions
Accurate Threads
Uniform dimensions for dependable assembly
Reliable Strength
Grade 4.6 Performance
Designed to meet specified mechanical requirements
Multiple Finishes
Finish Options
Plain and protective finishes available
Custom Sizes
Made-To-Order
Non-standard sizes and lengths available on request
Batch Traceability
Production Records
Material and batch documentation available
Grade 4.6 Bolt

 

0 · at glance

Mortec At A Glance

Established

Since 2012 • 15+ yrs experience

Manufacturing Units

2 in-house units • Taloja & Mazgaon

Stockyard Area

8,850+ sq.ft • Ready-stock inventory

Certifications

ISO 9001:2015, PED • GST, IEC & MSME

Clientele

100+ clients • India & export markets

Export Reach

19+ countries • Africa, GCC, Americas & APAC

Testing Offered

Chemical & dimensional • MTC EN 10204 3.1

Shipment Documents

Invoice, Packing List • COO, COI, MTC, BL & Lab Report

ASTM F568 Grade 4.6 Anchor Bolt Manufacturer in India in Most Demanded Sizes M12, M20, M16

Anchor bolt schedules rarely change just to accommodate a supplier's production timeline. When foundations are poured, contractors need M12, M16 and M20 lots immediately. Contractors in Johannesburg, Dubai, Nairobi and Toronto rely on our Grade 4.6 Bolt. Common sizes are boxed and weighed before each enquiry even arrives.

Each 4.6 Bolt is cold-forged from certified low-carbon wire rod. Threads are rolled rather than cut for consistent dimensional accuracy. Every bolt carries the class symbol before entering the packing drum. We form heads in-house and schedule plating directly for faster delivery. Plain or hot-dip galvanized finishes can be supplied without lengthy delays. For L, J or U forms, our desk confirms dimensions beforehand.

01 · Specification

Grade 4.6 Bolt Specification

Grade 4.6 Bolt Manufacturer in Mumbai provides specifications covering sizes, thread types, finishes, and standards.

Grade 4.6 Bolt Specification  

ASTM F568 Grade 4.6 Bolt Head Styles

  • Hex head to ISO 4014 / ISO 4017
  • Heavy hex, square, cup & csk heads
  • Full or part thread on request

4.6 Bolt Delivery Condition

  • Cold forged, thread rolled
  • Not quenched and tempered

Grade 4.6 Fasteners Coating Options

  • Hot dip galvanized to ISO 10684
  • Zinc electroplated to ISO 4042
  • Self colour, black oxide or oiled

Class 4.6 Stud Bolts Hardness Range

  • 120–220 HV
  • 67–95 HRB

Grade 4.6 Threaded Rod Ductility Data

  • Elongation after fracture 22% min
  • Stress under proof load 225 MPa

Grade 4.6 M12 Bolt Testing Scope

  • Proof load and wedge tensile test
  • Hardness, decarburization, head soundness

M16 Grade 4.6 Bolt Inspection & Audit

  • Third-party inspection on request
  • ISO 9001:2015 quality system
  • Certificate of origin for export lots

M20 Grade 4.6 Bolt Thread Length

  • Part thread b = 2d + 6 up to 125mm length
  • Fully threaded option to ISO 4017

4.6 Grade Bolt Export Packing

  • Kegs, cartons or shrink-wrapped pallets
  • Declared under HS heading 7318.15
Codes We Follow

DIN 4.6 Fasteners Manufacturing Standards

Each production lot is measured against these codes before the drums are sealed for dispatch.

ISO 898-1
ISO 898-2
ASTM F568M
IS 1367 Part 3
ISO 4014 / 4017
ISO 4032
ISO 10684
Client-Specific
02 · Size Chart

4.6 Bolt Size Chart

Standard dimensions and coarse thread sizes per ISO 4014/4017 and ISO 261.

Grade 4.6 M12 Bolt To M36 – Thread, Head And Load Data
Size Coarse Pitch (mm) Stress Area (mm²) Head A/F (mm) Head Height (mm) Min Tensile Load (kN)
M6 1.00 20.1 10 4.0 8.04
M8 1.25 36.6 13 5.3 14.64
M10 1.50 58.0 16 6.4 23.20
M12 1.75 84.3 18 7.5 33.72
M16 2.00 157 24 10.0 62.80
M20 2.50 245 30 12.5 98.00
M24 3.00 353 36 15.0 141.20
M30 3.50 561 46 18.7 224.40
M36 4.00 817 55 22.5 326.80

Keep Massive Inventory Of DIN 4.6 Fasteners Like Studs, Threaded Rod, Screw etc. At Factory-Direct Pricing

03 · Product Range

Types of Grade 4.6 Fasteners

Trusted Grade 4.6 Bolt Supplier in India, holding the fast-moving sizes in every common head form.

Hex Bolt 4.6 Grade

Hex Bolt 4.6 Grade

ISO 4014 • M6–M36
  • Cold-forged head, rolled thread
  • Class symbol stamped on head
Grade 4.6 Anchor Bolt

Grade 4.6 Anchor Bolt

L, J & U Forms
  • Bent to your foundation drawing
  • Supplied with nut and plate washer
Class 4.6 Stud Bolts

Class 4.6 Stud Bolts

IS 1367 Grade 4.6 Studs
  • Double end or full thread
  • Cut to your stated grip length
Grade 4.6 Threaded Rod

Grade 4.6 Threaded Rod

1m & 3m Lengths
  • High tensile class 4.6 threaded rod stock
  • Hanger, tie and suspension work
Hot Dip Galvanized Bolts Grade 4.6

Hot Dip Galvanized Bolts Grade 4.6

ISO 10684 Coated
  • Spun after dipping for clean threads
  • Oversize tapped nuts supplied to match
HT Grade 4.6 Nuts

HT Grade 4.6 Nuts

ISO 4032 • Matched Sets
  • Nut class selected to suit the bolt
  • HT grade 4.6 screws in short lengths

Grade 4.6 Bolt Manufacturer In India With In-House Forging Since 2012

Give us diameter, length, finish and piece count — a costed offer returns the same working day.

Request Quote Now
04 · Composition

Chemical Composition of M16 Grade 4.6 Bolt

Chemical Limits – Class 4.6 Carbon Steel (% by weight)
C0.55 maxCarbon
P0.050 maxPhosphorus
S0.060 maxSulphur
B0.003 maxBoron
FeBalanceIron
05 · Strength Data

ASTM F568M Grade 4.6 Bolt Mechanical Properties

Tensile Strength (min)400 MPa
Lower Yield Strength (min)240 MPa
Stress Under Proof Load225 MPa
Elongation After Fracture (min)22%
Vickers Hardness120–220 HV
Brinell Hardness114–209 HB
06 · Cross-Reference

Material Equivalent of IS 1367 Grade 4.6 Studs

UKBS EN (United Kingdom)

  • BS EN ISO 898-1 Class 4.6
  • Marked 4.6 on the head

GermanyDIN / EN (Germany)

  • DIN EN ISO 898-1 Class 4.6
  • DIN 267-3, superseded

USAASTM / SAE (USA)

  • ASTM F568M Class 4.6
  • SAE J429 Grade 1, approximate only

IndiaIS (India)

  • IS 1367 Part 3 Class 4.6
  • IS 1367 Grade 4.6 studs

JapanJIS (Japan)

  • JIS B 1051 Class 4.6
  • Same 400 / 240 MPa basis

ChinaGB (China)

  • GB/T 3098.1 Class 4.6
  • Common on imported hardware
Global Reach

Hot Dip Galvanized Bolts Grade 4.6 Supply Across Africa & The Gulf

Galvanized bolt sets and plain hex lots moving regularly to Southern Africa, East Africa and the GCC.

Africa & GCC
South AfricaDurban, South Africa
South AfricaJohannesburg, SA
UgandaKampala, Uganda
UAEDubai, UAE
Saudi ArabiaJeddah, KSA
TurkeyIstanbul, Turkey
07 · Anchor Forms

Configurations of Grade 4.6 Anchor Bolt

Anchor Bolt Grade 4.6 is the default choice for holding-down duty where the concrete, not the steel, governs the design.

L-Type Foundation BoltRight-angle leg cast into the pour, thread and projection to your drawing.
J-Type Hooked BoltCurved hook end for pull-out resistance in shallower foundations.
U-Bolt & Double End AnchorTwo threaded legs for pipe saddles, gantry and rail bases.
Plate Washer AnchorStraight shank with anchor plate welded or nutted at the buried end.
Template Supplied SetsBolts, nuts, washers and sleeve packed as one numbered set per base.

Grade 4.6 Bolt Exporter to Jebel Ali, UAE

Drum-packed anchor sets leave Nhava Sheva with paperwork already matched to your letter of credit.

Request Export Quote
08 · Traceability

Head Marking & Export Documents of High Tensile Class 4.6 Threaded Rod

What a Canadian or Kenyan inspector looks for when the drums are opened at the far end.

1

Class Symbol On Head

Hex bolts and screws are marked 4.6 alongside our manufacturer identification mark.

2

Heat & Lot Recorded

Wire rod heat number is carried through forging to the packing list.

3

Test Certificate Issued

EN 10204 3.1 certificate covering chemistry, mechanical results and coating.

4

Export Pack Assembled

Invoice, packing list, certificate of origin and bill of lading issued together.

09 · Assembly

Nut Bolt Grade 4.6 Assembly Pairing

Grade 4.6 nuts and washers are matched to the bolt before packing.

Nut Property ClassPair class 4.6 bolts with ISO 898-2 class 4 nuts as the minimum; a higher class may always be substituted.
Nut DimensionsStandard hex nuts to ISO 4032, supplied in the same coating as the bolt.
Plain WashersISO 7089 plain washers, 200 HV hardness class, protect the bearing face.
Never Mix DownwardsA class 4 nut on a higher class bolt strips the nut before the bolt reaches its rated load.
Packed As SetsBolt, nut and washer counted into one bag so nothing is short on site.
10 · Tightening

4.6 Grade Bolt Torque Chart

Torque values are calculated using 65% proof load, K = 0.20, and T = K × d × F.

Most Ordered M12 M16 M20 M24
Calculated Tightening Torque – Grade 4.6, Plain Dry Threads, K = 0.20
Size Proof Load (kN) Clamp Load At 65% (kN) Calculated Torque (Nm)
M6 4.52 2.94 3.5
M8 8.23 5.35 8.6
M10 13.05 8.48 17.0
M12 18.97 12.33 29.6
M16 35.33 22.96 73.5
M20 55.13 35.83 143.3
M24 79.43 51.63 247.8
M30 126.23 82.05 492.3
M36 183.83 119.49 860.3
11 · Comparison

Grade 4.6 Vs 8.8 Bolts

Both are metric property classes, but they are made differently and are not interchangeable in either direction.

Grade 4.6 Bolt

  • Tensile Strength: 400 MPa min
  • Yield Strength: 240 MPa min
  • Elongation: 22% min, more ductile
  • Condition: Cold forged, no heat treatment
  • Hardness: 120–220 HV
  • Best For: Anchor and holding-down duty

Grade 8.8 Bolt

  • Tensile Strength: 800 MPa min up to M16
  • Yield Strength: 640 MPa min up to M16
  • Elongation: 12% min, stronger but less ductile
  • Condition: Quenched and tempered
  • Hardness: 250–320 HV
  • Best For: Structural and machine connections
Global Reach

HT Grade 4.6 Screws Consignments From Toronto To Jakarta

Stock lines feeding North American distributors and Southeast Asian fabricators from the same Mumbai floor.

America & Asia
CanadaToronto, Canada
USAHouston, USA
MexicoMexico City, Mexico
VenezuelaVenezuela
SingaporeSingapore
PhilippinesManila, Philippines
MalaysiaMalaysia
VietnamVietnam
ThailandThailand
IndonesiaIndonesia
12 · Industries

Applications of Class 4.6 Stud Bolts

Where 4.6 grade stud bolt lots are consumed in volume, and why buyers keep them on standing order.

Foundation & Holding-Down Bolts
Non-Critical Steelwork Connections
Solar Mounting Structures
Water & Sewage Treatment Plant
Scaffolding & Formwork
HVAC & Ducting Supports
Agricultural Equipment
General Fabrication & Maintenance

HT Grade 4.6 Nuts Supplier In Durban With Head Marking Verified

Tell us the class marking and coating your specification calls for, and we confirm stock against it.

Get Supplier Quote
13 · Turnaround

M20 Grade 4.6 Bolt Delivery Estimate

Loading begins at our Mumbai unit the moment the order is confirmed. Pick the freight mode that suits your site programme.

Ex-Stock Dispatch

Common M12, M16 and M20 lots move out within 2–5 working days

Sea Freight

Best value on drum quantities, roughly 2–5 weeks to the discharge port

Air Freight

Sample bags and shutdown replacements land inside 4–8 days

Country-Specific ETA

Name the delivery port and we come back with a dated window

14 · FAQs

ASTM F568M Grade 4.6 Bolt FAQs

The questions buyers raise most often before releasing an order.

What is the price of a Grade 4.6 Bolt?

Based on size, length, finish and quantity. Send your requirements for a firm ex-Mumbai quote.

What is the ASTM F568M Grade 4.6 Bolt equivalent?

ISO 898-1, ASTM F568M, IS 1367, JIS B 1051 & GB/T 3098.1. SAE J429 Grade 1 and ASTM A307 Grade A are approximate equivalents.

Where are DIN 4.6 Fasteners typically used?

They are commonly used in low-stress structural, general engineering and non-critical fastening applications.

Can Class 4.6 Stud Bolts be hot dip galvanized?

Yes. Class 4.6 is suitable for routine hot-dip galvanizing to ISO 10684, with oversize-tapped nuts for smooth assembly.

Can M20 Grade 4.6 Bolt replace a Grade 8.8 bolt?

No. Grade 8.8 is twice as strong as Grade 4.6 and is not a direct substitute.

Grade 4.6 Bolt – Why Buyers Reorder From Mortec
Cold-forged 4.6 heads keep grain flow unbroken into the shank
M12, M16 and M20 held plain, zinc-plated and galvanized
Every Grade 4.6 bolt lot ships with proof-load test certification
Custom L, J and U anchor forms bent to your drawing

Materials



Products

Certifications & Credentials
Certified to PED 2014/68/EU for the manufacture of forged steel products
Stock, distribute and trade Steel Flanges, Nuts and Bolts, and precision-machined parts in Nickel Alloys, High Temperature Alloys and Super Alloys
Since 2012, exporting Oil and Gas piping items built to NACE MR0175 / ISO 15156 across the Egypt, Tunisia, Netherlands, Azerbaijan, South Africa, Algeria, Saudi Arabia and Morocco
Hold the largest import and stock inventory of bolting accessories, in both ferrous and non-ferrous metals, in India

Authorized Supplier For The Following Companies - Material At Reseller Price For Traders

Associated Companies - ADNOC, SABIC, Saudi Aramco, GASCO, ORPIC, KNPC, QATARGAS

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