FASTENERSSpecialist in Hi-Tensile & Mild Steel

Established in 2003, Karamtara's Fasteners business vertical provides truly global services. We provide special

industrial fasteners to international clients in the manufacturing and trading industries and also manufacture a wide

range of Fasteners including bolts, nuts, anti-theft bolts & nuts, studs, foundation bolts, U-bolts, plain and spring

washers, etc.

Our manufacturing facility in Tarapur has installed capacity of 30,000 MT per annum. The plant manufactures HT & MS

fasteners for Power Generation, Transmission & Distribution Industry, Telecom Tower Industry, Solar Industry,

Automobile Industry, Wind Energy, Construction & Infrastructure, PEBs, Railways and others. With close proximity to

the Mumbai Seaport, the plant has a massive locational advantage, which enables us to provide swift deliveries to

clients across the globe.

Fasteners Business

We at Karamtara aim for perfection. With this ideology in mind,

Manufacturing System has been developed and are used to attain this.

The entire system is an integrated one using SAP, right from Purchase to

Material Receipt to Production Planning to Manufacturing and finally to

dispatch of the finished products.

The facility has

Hot Dip Galvanizing Zinc Plating Black Phosphating

Electro Galvanizing Zinc Flake Coating Zinc Phosphating

Mechanical Galvanizing

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Manufacturing Facilities

There are Fasteners and then there are quality Fasteners from

Karamtara that meet the strict requirements and provide maximum

safety for reliable operations without breaking down. We are ever

dedicated to uphold the highest standards of quality in all our

endeavours. Our emphasis on stringent quality control is well

reflected in our quality systems and technologically superior in-

house laboratory, which ensures the quality and reliability of our

products. Our Quality Systems are certified and in compliance

with ISO 9001:2015, ISO 14001:2004, OHSAS 18001:2007 and we

are also a CE certified company.

Quality & Testing

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In house calibration

Universal Testing Machine

MPI Testing Machine

Hardness Testing Machine

Cantilever Testing Machine

Shadowgraph

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Calibration Instruments

Torque Testing

Impact Testing

Planting Thickness Testing

Salt Spray Testing

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Thread Profile Masters

Non-destructive Testing

Magnetic Particle Inspection

Metrological Lab

Metallurgical Lab

Testing Infrastructure

Certifications: We are approved by Globally Certified Organizations

Applications

Product RangeItem

M6-M52 4.6/5.6/ 12427, 3692/ 4014/ 601/ A-325 M/ B 18.2.1 B 1180

HEX BOLT 5.8/6.8/ IS 1363 PART I & 4190 4016 931/ A 394

8.8/10.9 IS 1364 PART I 7990

M6-M52 4.6/5.6/ IS 1363 PART II & – 4017/ 933 – – –

HEX SCREW 5.8/6.8/ IS 1364 PART II 4018

8.8/10.9

M6-M52 4/5/6/ 1363 PART III & 3692/ 4032/ 555/934 A 563 B 18.2.4.1M B 1181

HEX NUT 8/10 IS 1364 PART III 4190 4034 24034/ B 18.2.2

IS 14394 24032

M6-M52 4/5/6/ IS 1364-3 4190 4032 555/934 – B 18.2.4.1M JIS

HEX THIN NUT 8/10 1181

SHEAR NUT M8-M16 AS PER DRAWING

PLAIN / PACK M6-M52 – 2016/6610 4320 7089/ 125/ B 27.2/ B 18.22/ B 1256

WASHER 7090/ 126 F436M B 18.22M

7091

SPRING M6-M52 – 3063 4464 – 127 B 27.1 B 18.21.1 B 1251

WASHER

DISC SPRING M6-M30 – 2507 – – 2093 – B 27.4 –

WASHERS

HEX NYLOCK M6-M48 – 7002 – 7040/ 980/982/ – – –

NUTS 7041 985

HEX SLOTTED & M6-M48 – 2232 1083 – 935 937 – B 18.2.4.4M –

CASTLE NUTS

FULLY

THREADED M6-M48 – – 916 – 975 – – –

RODS/STUDS

CUP SQUARE M6-M42 – – – – 603/604/ – B 18.5.2.2M –

BOLT & NUT 605/607/

/608

Product Image Size Grade IS BS ISO DIN ASTM ANSI JIS

Product RangeItem Product Image Size Grade IS BS ISO DIN ASTM ANSI JIS

ANTI THEFT 5.6/

BOLT/NUT M6-M24 5.8/ AS PER DRAWING

6.8

U BOLT M6-M48 AS PER DRAWING

FOUNDATION 5624 /

BOLT M6-M48 - AS PER AS PER DRAWING

DRAWING

STEP BOLT M6-M48 4.6/5.6/ 10238 /

5.8/8.8 AS PER AS PER DRAWING

DRAWING

COACH BOLT M6-M20 8.8 2609 – – – – – –

HIGH

STRENGTH M16-M36 8.8s/ 3757 4395 7412 6914 – B 18.2.3.7M B1186

STRUCTURAL 10.9s

BOLTS

DIRECT EN ASTM

TENSION M12-M36 8.8/10.9 – 14399-9 – – F959M – –

INDICATORS

HIGH

STRENGTH M16-M36 8s/10s 6623 4395 4775 6915 – B 18.2.4.6M –

STRUCTURAL

NUTS

HIGH

STRENGTH M16-M36 – 6649 4395 7415 6916 – – –

STRUCTURAL

WASHERS

STUD WITH 3/8" to 3" STUD B7 NUT 2H 2.1/4" – – – A193 –

2 HEAVY NUTS TO 27" A194

STAR LOCK M6-M24 – 5371 – – 6797 – – –

WASHER ROD

SHEAR AS PER ISO

CONNECTORS/ CUSTOMER – – – 13918 – – – –

ARC WELDING REQUIREMENT SD

STUD WITH TYPE

CERAMIC FERRULE

Domestic Clients:

Our Leading Clients:

International Clients:

Karamtara is an Engineering, Manufacturing and Technology company. Incorporated in 1996, Karamtara began

its journey in 1998, and since then Karamtara has evolved as a leader in the Transmission and Distribution

(T&D) Segment of Power Sector.

Karamtara is the only company to offer one stop solution for most items in T&D segment, in the world,

manufacturing Transmission Line and Telecom Towers, Hot Rolled High Tensile (HT) & Mild Steel (MS)

Structural Steel Profiles, HT & MS Fasteners (Bolts, Nuts, Washers), OHTL Hardware Fittings & Accessories,

Spacer Dampers and Solar Structures.

In a span of 18 years, from a single manufacturing unit, Karamtara now possesses six manufacturing facilities

in India and Italy.

Solar Structures Transmission Line Structural Steel Fasteners Hardware Fittings

Business Verticals

The only integrated player in the world into manufacturing of

Transmission Line Towers, Structural Steel Profiles, Fasteners, Overhead Transmission Line Fittings (OHTL) & Accessories

and Solar Structures under one banner.

Karamtara Engineering Pvt. Ltd. Corporate Office:

Phone: +91 (022) 2673 1000 • Fax: +91 (022) 2673 1015. Email: sales@karamtara.com

Fasteners Plant: Plot No. A-12, MIDC, Tarapur, Taluka Palghar, Dist. Thane - 401 506. India.

www.karamtara.com • Karamtara Engineering

705, Morya Landmark II, New Link Road, Andheri (West), Mumbai – 400 053, India.

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