Steel Nuts, High Tensile Nut Bolt, Custom Grade & Size Nuts

Manufacturer & Stockists Of Comprehensive Range Steel Nuts in Excellent Quality with low price

Hex Nuts, Heavy Hex Nut,Cap Nut, Acorn Nut, Serrated Flange Nut,Flex Lock Nut,Castle Nut, Wing Nut Manufacturer, Exporter & Suppliers.


Original Photograph Of Steel Nuts At Our Warehouse Mumbai, India

Original Photograph Of Steel Nuts At Our Warehouse Mumbai, India

Steel Tubes India are the leading manufacturer of high integrity special fasteners (e.g. bolts, set screws, stud-bolts, nuts and washers), meeting clients’ exacting demands for critical applications in hostile environments. Whether for offshore (buoyancy and petrochemical), seawater, pump, valve or nuclear, the demands for an exceptional service and supply is never ending. We believe manufacturing bolting in exotic materials is an art form and it is something we have perfected at Steel Tubes India

nut is a type of fastener with a threaded hole. Nuts are almost always used opposite a mating bolt to fasten a stack of parts together. The two partners are kept together by a combination of their threads' friction, a slight stretch of the bolt, and compression of the parts

We produce premium quality Nuts from various metals & metal alloys with ASTM/ASME/DIN Standards & Specifications.We produce different types of nuts hot forged cold formed nuts in almost all shapes & sizes.We also provide passivation,quality coating further processing as per client's requirement.


Nuts Specification


Nickel Alloy Steel Nut

ASTM / ASME SB 160 / 164 / 425 / 166 / 446 / 574 / 472
UNS 2200 (NICKEL 200) / UNS 2201 (NICKEL 201), UNS 4400 (MONEL 400), UNS 8825 (INCONEL 825), UNS 6600 (INCONEL 600) / UNS 6601 (INCONEL 601), UNS 6625 (INCONEL 625), UNS 10276 (HASTELLOY C 276), UNS 8020 (ALLOY 20 / 20 CB 3)
Stainless Steel Steel Nut
ASTM / ASME A/SA 193 / 194
B 8 (304), B 8C (SS 347), B 8M (SS 316), B 8 T (SS 321), A 2, A 4
Alloy Steel Steel Nut
ASTM / ASME A/SA 193 / 194 GR
B 6, B 7/ B 7M, B 16, 2, 2HM, 2H, GR 6, B 7, B 7M
Duplex Steel Nut
UNS NO. S 31803, S 32205

Nut Bolt Note:-
Stainless Steel Nut Bolt in Grade:
  • 304
  • 304L
  • 316
  • 316L
  • 309
  • 310
  • 317L
  • 321
  • 347
  • 409
  • 410
  • 420
  • 430
  • 446
  • 202
  • 18-8 ss, 316 ss, 400 series ss Etc.
Nickel Alloy in:
  • Hastelloy Nut Bolt
  • Cupro Nickel Nut Bolt
  • Nickel Nut Bolt
  • Monel Nut Bolt
  • Inconel Nut Bolt
  • Alloy 20 Nut Bolt Etc.

Plain, black, zinc plated (Cr,3+), zinc plated(Cr,6+), hot dipped galvanized, dacromet, nickle plated, cadmium plated, etc.

In Form of:
  • Hex
  • Square
  • Round
Head drive Phillips, Slotted, Phillips/Slot, Six-Lobe, etc.
Packing: IN BULK :canton/pallet, Small Boxs/carton/ pallet, or customer request
Origin and service-region: European
Origin of Nut Bolt are Western European. However projects with eastern origin are possible on request.
TEST CERTIFICATE Manufacturer Test Certificate as per EN 10204 / 3.1


Types Of Nuts Ready Stock Available At Steel Tubes India


 Hex Nuts
 Heavy Hex Nut
 Cap Nut
Hex Nuts
Heavy Hex Nut
Cap Nut
 Coupling Nut
 Square Nut
 Castle Nut
Coupling Nut
Square Nut
Castle Nut
 Flex Lock Nut
 High Nut
 K Lock Nut
Flex Lock Nut
High Nut
K Lock Nut
 Serrated Flange Nut
 Flange Lock Nut
 Nylon Lock Nut
Serrated Flange Nut
Flange Lock Nut
Nylon Lock Nut
 Slotted Nut
 2 Way Lock Nut
 Custom Nut
Slotted Nut
2 Way Lock Nut
Custom Nut
 Acorn Nut
 Wing Nut
 Jam Nut
Acorn Nut
Wing Nut
Jam Nut
 T Nuts
T Nuts


To buy Nuts At best price & urgent delivery please mail to , As we have Our Dealer, distributors & direct sales representatives in below countries who will help you to buy Nuts & will resolve your queries

Saudi Arabia
South Africa

Get Free Quote Today !


Nuts Surface Coating



General Queries While Buying Nuts

  • Supply of wrong grades
  • Material inconsistent with ASTM Standards
  • Very hard material for use
  • Poor surface finish
  • No Mill test report
  • Lack of knowledge
  • Product fails under high pressure
  • High pricing of the goods due to supplier commission
  • Dubious Practices
  • High rejection rate
  • No control on quality and testing
  • Non availability
  • Late deliveries
  • Poor packaging/ Unprofessional Packing
  • Poor after sales service


Why Choose Steel Tubes India While Buying Nuts ?

  • Government and Private Laboratory Testing
  • Very quick delivery
  • Mill test report/ Digital Mill test report in accordance with EN10204 NACE 3.1, NACE 3.2
  • High pressure sustainability
  • Test certificate from ISO 17025 Standards Laboratory
  • Same day shipping of the goods
  • Impeccable surface finish
  • Product replacement warranty
  • After sales support and service
  • World class buying experience
  • Highest stock in the country
  • Stringent Quality Testing and Control
  • 3rd Party inspection


Nuts Inventory

We Export To

Call today, and find out why Steel Tubes India is the choice for so many users of Nuts

Tel: +(91)-(22)-61432000 or send an Email to

Winner Of


Stainless Steel Fasteners

Duplex Steel Fasteners

Nickel Alloy Fasteners

Inconel Fasteners

Hastelloy Fasteners

Nitronic Fasteners

Monel Fasteners

Titanium Fasteners

Other Special Material

Price List

Quick Enquiry


  • Associated with Steel tubes for over 10 years. During this time they Supplied various types of steel fasteners to us even sometime in very short notice, but this time we were required custom Hex bolts in Hastelloy c276 material in maximum 10 day here in Germany, i knew that it was next to impossibe, but i appriciate that they made it possible & deliverd exactly as per our drawing in 8 days, they are superb as a hastelloy hex bolts Manufacturers, They have experienced & Good team as well excellent logistic access.

    Dr. Antonella M-Pochtler
    Cheif Consultant

    Btc Speciality Chemical Distribution Gmb

  • Procuring PTFE coated Stainlesss Steel fasteners in high quality grades like SS 304,316L,317L & ss 904L and must say they never compromised with quality in last 8 years,special thanks to team they have knowledgeable about their work. Invoicing is always prompt and detailed. Quotes are received in minimum time. It is always great to work with Steel Tubes India for such a long time and know that loyalty always counts”

    Paul Jackson
    Production Head

    Ambic Equipment Limited

We Export To