Stainless Steel Fasteners manufacturer in India

ASTM A193 Stainless Steel Nut Bolts supplier in Mumbai

Stainless Steel Bolts
Stainless Steel Bolts
Stainless Steel Fasteners
Stainless Steel Fasteners
Stainless Steel Nuts
Stainless Steel Nuts

ASME SA 193 SS Threaded Rod, Studs and Hex Bolts in Grade 304, 304L, 316, 316L

Stainless Steel Fasteners also known as inox steel or inox fasteners from the French “inoxydable” is a steel alloy with a minimum of 10.5 % chromium. A2 Bolts (304, 18/8) is a inox stainless steel bolts and is non-magnetic. In A2 bolts material the chromium provides a corrosion and oxidation resistance, however it can tarnish. SS 304 bolts are the most common stainless steel bolts. SS 304 fasteners contains both chromium (between 18–20%) and nickel (between 8–10.5%) metals as the main non-iron constituents. As a government approved Stainless Steel Fasteners manufacturers in India we supply a widest range of of Stainless Steel nut bolt which are used for inland rain water and fresh water to guide against these environments.

A2 bolt is an austenitic stainless steel. SS Studding (Threaded Rod) A2 & A4 are less electrically and thermally conductive than carbon steel and is essentially non-magnetic. SS Hexagon Bolts A2 DIN 931 has a higher corrosion resistance than regular steel and is widely used because of the ease in which it is formed into various shapes. Stainless Steel Nuts A2 & A4 are the most common, popular and widely-used fasteners. Stainless Steel 304 Bolt is widely known as 18-8 (or 18/8) bolt which refers to its chemical content of 18% chromium and 8% nickel.

Stainless steel, when used for fasteners (nuts, bolts, screws etc) have British standards. BSENISO 3506 replaces BS6105. Part 1 covers bolts, screw and studs, part 2 nuts and part 4 tapping screws. when we see type A2 stainless steel bolts, we can also call it Type 304 fasteners. A2 > Type 304 can also be called 18/8 because it ‘approximately’ contains 18% Chromium and 8 % nickel.

A4 grade fasteners can be called type 316 fasteners. However, for marine conditions you need more resistance to corrosion. Adding molybdenum (2-3%) to the mix provides this extra cover – and gives us the A4 bolts. A4 grade bolt then is also austenitic, non magnetic and suitable for all the situations as A2 bolt BUT has the added advantage of being suitable for marine solutions. Often called Marine grade screws and marine grade SS fasteners. Our selection of SS bolts are A2 class 70 which is the most popular and widely used grade of stainless steel fixing. Both A2-70 bolt and A4-70 bolt come in three property classes: 50 (soft) , 70 (cold-worked) & 80 (high-strength) – the most common of which is the 70 class which is cold drawn” from bar stock.

Steel Tubes India is RINA approved supplier & exporter of Stainless Steel Full thread stud, SS exhaust bolts, turbo bolts, Aerospace Bolts,  Stud Bolts, fixings, SS 304 Round Head Bolts, Hex Cap Screw, Dowel Pins, Flat Washer,  Nuts, SS 304 flat head cap screw, Heavy Hex Nuts, anchors, inserts, SS 304 threaded bars, Spring Washer and 304L hose clamps. We are stockist & distributor of PTFE- Teflon coated fasteners, DIN and ISO Metric SS 304 fasteners &  hex bolts, rivets, m10 bolts,  threaded rod and Double End Studs. Steel Tubes India is PED approved manufacturer of PTFE Coated Stainless Steel Fasteners, Studs & machine screws. Check latest price list of Stainless Steel U-bolts and structural bolts.

Steel Tubes India is also produce  aircraft fastening hardware like  self-locking nuts, wind turbine fasteners, anchor bolt and timber mat bolts (crane mat bolts), threaded inserts and high performance fasteners for aerospace and defense which can be plated in different platings, including zinc chromate, Hot Dip Galvanize etc.

Stainless Steel socket head cap screw also known as an Allen screw or Allen bolt, or simply a cap screw conforming to ISO 4762 or DIN 912. Stainless Steel Dowel rods are often cut into short lengths called SS 304 dowel pins. Our Stainless Steel threaded rod is steel rod with a metric screw thread along its entire length. SS 304 Threaded rod is ideal for heavy applications where a longer than normal length of SS 304 bolt is required. 304 Threaded rod come in a variety of diameters and are sold in 1-metre lengths so you can cut them to the length you require.

We have wide stock of  Hex Head ScrewsStainless Steel Flange Bolts, Long Bolts (Cable Reel Bolts, Motor Bolts, Thru Bolts), Place Bolt, 12 Point Bolt & SS 304 Hex Head Cap Screw. Compare our price of Socket Set Screws with supplier of Carriage Bolt in China. In Petro and chemical industry for flange connections studStud Bolts and  Hex Bolts are used.

Our Dealers & Distributors in India and USA arrange complete range of Fastener & SS 304 Bolt in shortest time as well at best price, because we maintain anchor bolts and stud bolts in stock for sale which is available in many different ASTM grades including B7L7, B16, B8B8M, stain hardened and many more, so it saves time & cost to procure large diameter standard and metric fasteners & SS 304 bolting materials such as SS hex bolt, metric nuts, SS 304 screws, SS 304 washers stock from any other vendor or Manufacturer of High Tensile Fasteners in India.

Check our latest price list of Stainless Steel pins and studs, Chain Pins, Double End Studs & Single End Studs & two sided fastening product, mail to for best price of Stainless Steel Hex Washer Screws, Six Lobe Screws, SS 304 Panel Screws, Thread Cutting Screws, Stainless Steel self tapping screw, Lock and Flange Lock Nuts, Finish Hex Nut, Heavy Hex Nut & Hex Flange Nut in Mumbai, Chennai & Ahmedabad, Gujarat.

Our online Stainless Steel Bolts Weight Calculator allows you to calculate an estimate of the weight of different sizes of Concrete Screws, shoulder bolt, allen bolt & Threaded Screws based on dimensions, shape and size #4 through M75. Check below table of Stainless Steel Bolt, Nut & Screw sizing chart which shows nominal size and provides convenient weight data.

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Stainless Steel Fasteners manufacturers in India

Stainless Steel Fasteners manufacturers

Different Types of Stainless Steel Fasteners

Due to its strength, high heat properties, stability and anti-corrosiveness, stainless steel is in big demand for the manufacturing of fasteners. Because of these properties, stainless steel is considered to be a very versatile and economic alloy. Different types of stainless steel fasteners are available, based on the need for the use of these fasteners in various applications. Stainless steel fasteners are obtainable in various forms. Superior corrosion resistance is assured, when stainless steel fasteners are used in wet applications and outdoor applications. Click on below tab to view all fasteners types.

Stainless Steel stud bolts, hex head bolt, Round Head Bolts, m10 bolts, eye bolt, wing bolts, SS 304 Bolts price in India, Full thread stud suppliers
Stainless Steel Threaded Rod
Stainless Steel Threaded Rod
Stainless Steel Stud Bolt
Stainless Steel Stud Bolt
Stainless Steel Dowel Pin
Stainless Steel Dowel Pin

Stainless Steel Bolts Specification


Fasteners Material Stainless Steel Fasteners
Fasteners Size M 02 to M 160
Bolts Length 3 mm to 200 mm
Bolts, Studs Threads: METRIC, BSW, BSF, UNC, UNF or as required
  M2, M2.5, M3, M4, M5, M6, M8, M10, M12, M14, M16, M20, M24, M30, M36

SS 304 Fasteners Standard:

ANSI – American National Standards Institute

  • ANSI B 18.2.4 2M
  • ANSI B 28.2.4 1M
  • SS 304 Stud Bolt length are defined in ASME B16.5 standard
  • SS 304 Hex nuts are defined in ASME B18.2.2
  • ASME B18.5

DIN: DIN 931, DIN 933, DIN 934, DIN 970

UTS – Unified Thread Standard : UNC, UNF, UNEF, UNS, NPT, NPTF

ISO – International Organization for Standardization : ISO 4032, ISO 4033, JIS standards

Property Class For Bolts & Screws: A2-70, A2-80, A4-70, A4-80, F593C, F593D, F593G, F593H
For Nuts: A2-70, A2-80, A4-70, A4-80, F594C, F594D, F594G, F594H, A2-035, A4-040
For SHCS: F837B, F837C, F837E, F837
For Threaded Rods: A2-70, A2-80, A4-70, A4-80, F593C, F593D, F593G, F593H, B8, B8M CL1 & CL2
  • Hot Forged Stainless Steel Fasteners, Nut / Bolt; up to M36 / 1-1/2” Dia, up to 1100mm lg
  • CNC Machined Stainless Steel Fasteners, Nut / Bolt; up to M100 / 4” Dia, up to 1500mm lg
  • Fasteners standard ANSI / ASME B18.3, B18.2.1, B18.6.7M, B18.6.3, B16.47, B1.1, B18.2.2, B18.22.1
  • ASME B18.13 Screw and Washer, ASME B18.16.6 Prevailing Torque Locknuts, ASME B18.18 Fasteners
Fasteners In Form of:

Hex, Square, Round, Threading as per Gauge Etc.

bolting Test Certificate: Manufacturer Test Certificate as per EN 10204 / 3.1
Fasteners finishing: Zinc (yellow, white, blue, black), black oxide,
Geometry, Dacroment, anodizing, nickel plated, plated zinc-nickel, Stainless steel: Passivated
Self-Colour, Hot Dip Galvanised (HDG), Bright Zinc Plated (BZP), Sherardized, Stainless Steel, Mechanically Applied coating and some special one like DACROMET
Bolts Production process M2-M24: Cold Froging, hot forging M24-M100,
machining and CNC for Customized connecting element
Bolts Head drive: Phillips, Slotted, Phillips/Slot, Six-Lobe, etc
Fasteners Origin and service-region: European
Origin of Stainless Steel Fasteners are Western European. However projects with eastern origin are possible on request.
bolting materials Surface Coating:
  • Hot Dipped Galvanizing SS 304 Fasteners
  • Phosphate SS 304 Fasteners
  • Teflon SS 304 Fasteners
  • Ptfe Coated SS 304 Fasteners
  • Xylon SS 304 Fasteners
  • Zinc SS 304 Fasteners
  • Cadmium SS 304 Fasteners

All surface finishes can be supplied, including Zinc, Galvanised, Sherardized, Electroless Nickel, Dacromet, Geomet & PTFE

Top Manufacturers of SS 304 Fasteners SPAX® Screws, GKW, Unbrako, Kundan, APL, Sundaram Precision, Infasco, EBY Fastener Etc.
Main Types of SS 304 Bolts Hex Bolt, Hex Head Bolt, Eye Bolt, Square Bolt, U Bolt, T Bolt, Counter sunk Bolt, Lag Bolt etc.
Main Types of SS 304 Nut Hex Head Nut, Coupling Nut, Square Nut, Wing Nut, T Nut, Panel Nut, Dome Nut, Acorn Nuts, Lock Nut, Eye Nut etc.
Main Types of SS 304 Screw Hex Head Screw, Threaded Screw, Socket Head Screw, Socket Set Screw, Blind Rivet, Concrete Screw, Shoulder Screw, Anchor Screw, Panel Screw, Machine Screw etc.
Main Types of SS 304 Washer Machine Washers,Lock Washer, Sealing Washer, Star Washers, Split Washer etc.
Fasteners Packing: IN BULK: canton, pallet, Small Boxs / carton / pallet, or customer request
Specialized manufacturer of High Tensile Fasteners, Bolts
Aerospace Bolts

Types of Aerospace Bolts

Test Certificates
  • EN 10204/3.1B
  • Raw Materials Certificate
  • 100% Radiography Test Report
  • Third Party Inspection Report, etc
SS Fasteners Grades

DIN 84 (Similiar to ISO 1207) A2 Slotted cheese head screws
DIN 85 (Similiar to ISO 1580) A2 Slotted pan head screws
DIN 95 A2 Wood screws, raised countersunk head, slotted
DIN 96 A2 Wood screws, round head, slotted
DIN 97 A2 Wood screws, countersunk head, slotted
DIN 186 A2 T-head bolts with square neck, type B (long thread)
DIN 188 A2 T-head bolts with double nib
DIN 316, DIN 318 A2 Wing screws, american type (edged wings)
DIN 316 A2 Wing screws, heavy type (rounded wings)
DIN 186 A2 T-head bolts with square neck, type B (long thread)
DIN 188 A2 T-head bolts with double nib
DIN 316, DIN 318 A2 Wing screws, american type (edged wings)
DIN 84 A4 Slotted cheese head screws
DIN 85 (Similiar to ISO 1580) A4 Slotted pan head screws
DIN 95 A4 Wood screws, raised countersunk head, slotted
DIN 96 A4 Wood screws, round head, slotted
DIN 97 A4 Wood screws, countersunk head, slotted
DIN 186 A4 T-head bolts with square neck, type B (long thread)
DIN 188 A4 T-head bolts with double nib
DIN 316, DIN 318 A4 Wing screws, american type (edged wings)
DIN 316 A4 Wing screws, heavy type (rounded wings)
DIN 186 A4 T-head bolts with square neck, type B (long thread)
DIN 188 A4 T-head bolts with double nib
DIN 316, DIN 318 A4 Wing screws, american type (edged wings)

Stainless Steel Screws, Hex Cap Screw, flat head cap screw, socket head cap screw, Spring Washer, Flat Washer exporter in India, Nuts, Heavy Hex Nuts

Types of Stainless Steel Fasteners

Most popular & selling Fasteners in India

Fasteners SS 304 Fasteners
Stainless Steel Stud Bolt SS 304 Bolts
304 Punched Washer A4 Bolts
Stainless Steel Pan Head Screw Stainless Steel Square Nut
Stainless Steel Insert Nuts Welding Studs
304 Pan Head Screw ASTM B166 Cap Screw
304 Bolts SS Foundation Bolts
SS Threaded Rod Stainless Steel Dowel Pin traders
Stainless Steel Hex Bolts SS Hex Head Bolts
Stainless Steel Nuts Stainless Steel Washers
Fender Washer UNS S30453 Lock Nut
Stainless Steel Square Bolts Stainless Steel Tie Bar
Locking Nuts SS Coupler Nuts
Stainless Steel Flat Washer 304L Countersunk Slotted Screw
Double Ended Stud 304 Studbolt
Blind fasteners (rivets, rivet nuts, cage nuts) SS 304 Industrial fasteners and fixings
Pins and keys SS Self drilling screws
Self-tapping / Thread forming screws Stainless Steel Self Clinching Fasteners

Stainless Steel Nut Bolt Manufacturer in India

If you are seeking a top-notch stainless steel nut bolt manufacturer in India, then look no further. We are a PED approved manufacturer of stainless steel nut bolts in India. There are different kinds of stainless steel nut bolts and some of these are socket set "grub" screws, carriage bolts, shoulder bolts, hex head bolts, socket cap screws, machine screws, square head bolts, etc.

Stainless Steel Screws and Washers Types

Stainless steel screws and washers types can be obtained in a variety of finishes, materials and grades. There are many kinds of stainless steel screws and some of these are deck screws, wood screws, self-drilling screws, hex lag screws, sheet metal screws, etc. There are various types of stainless steel washers and some of these are neoprene EPDM washers, lock washers (split ring), backup rivet washers, lock washers (external tooth), fender washers, NAS washers, dock washers, lock washers (high collar), structural washers, finishing cup washers, lock washers (internal tooth), square washers and flat washers. Stainless steel screws, fasteners, nut bolts and washers are used in a number of applications and industries and these include components that are exposed to high stress and high heat, sanitary equipment, components that call for the use of superior stability and superior strength, high wear parts and components which are exposed to chemicals, saltwater or other corrosive environments. Click on below tab to view all washers types.

Stainless Steel Bolt properties

Stainless Steel Fastener, Nut Bolt Chemical Composition

See table below for A2-70 material chemical composition (standard chemical compositions for a range of 304 stainless steels is also given for information).

Grade C Mn P S Si Cr Ni Cu
A2-70 Min - - - - - 15.0
Max 0.1 2.0 0.05 0.03 1.0 20.0 19.0 4.0
304 Min - - - - - 18.0 8.0
Max 0.08 2.0 0.045 0.03 0.75 20.0 10.5
304L Min - - - - - 18.0 8.0
Max 0.03 2.0 0.045 0.03 0.75 20.0 12.0
304H Min 0.04 - - - - 18.0 8.0
Max 0.10 2.0 0.045 0.03 0.75 20.0 10.5


  1. If the chromium content is below 17%, the minimum nickel content should be 12%
  2. If the carbon content is a maximum of 0.03%, nitrogen may be present to a maximum of 0.2%

Mechanical Properties of Stainless Steel Fasteners, Nut Bolts

The mechanical properties of material supplied for conversion into bolts, screws and studs conforms to the requirement of the standard below. For comparison, the “normal” mechanical properties of 304 are given for information.

Grade Tensile Strength (MPa) min Yield Strength
0.2% Proof
(MPa) min
(% in 4D min)
Red of Area (% min) Hardness (HRC max)
A4-70 700 450 40 Not required Not required
304 515 205 40 55 15
304L 485 170 40 55 15
304H 515 205 40 55 15

Note: the standard allows that, for diameters over 1.1/2” (38.1 mm), centre (core) properties may be lower than indicated by test results which are based on values determined at ½ radius.

Stainless Steel Fasteners, Nut Bolt Physical Properties

Typical physical properties of 304 grade stainless steel in the annealed condition.

Grade Density
Elastic Modulus (GPa) Mean Co-eff of Thermal Expansion (μm/m/°C)
Thermal Conductivity (W/m.K)
Specific Heat
0-100 °C (J/kg.K)
Elec Resistivity (nΩ.m)
0-100 °C 0-315 °C 0-538 °C
At 100 °C At 500 °C
304/L/H 8000 193
17.2 17.8 18.4
16.2 21.5
500 720

Stainless Steel Bolts Price

Fasteners Price List Price Per Pcs.
Hex head bolt price USD $6.25
Machine bolt price USD $5.50
Screws price USD $3.40
Socket Head Cap Screw price USD $3.40
Allen bolt price USD $5.00
Dowel Pins price USD $1.40
Nuts price USD $1.40
Washer price USD $1.40

Aircraft Materials & Aerospace Materials Specialist