Sumit Impex is one of the leading manufacturers and suppliers of stainless steel fasteners that are created to match industry standards. Our production specialty products include bolts, nuts, screws, washers, and stud bolts produced from different grades, including SS 304, SS 316, SS 316L, and SS 321. These grades give the right amalgam between corrosion resistance, strength, and durability that helps to suit different applications. For example, SS 304 is good for ordinary usage, and SS 316 and SS 316L offer better performance in aggressive conditions. As will be seen, SS 321 is an ideal material for high-temperature services.

Sumit Impex is a Supplier of Stainless Steel Fasteners, Biggest Stockist of SS Fasteners as per Standards in Mumbai, India.

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Stainless steel fasteners are important elements in mechanical systems applied in different industries because of their strength and resistance to corrosive environments. With the material of metal alloy steel, the fasteners are designed for durable and rigid conditions, thus useful in the aerospace industry, the automobile, construction, and marine industries, among others. Despite their hostile environment, they do not corrode easily, thereby extending the time it will take before you have to replace them. Austain stainless steel fasteners are available in many types, such as bolts, nuts, screws, washers, and stud bolts, the use of which depends on the need that is required.

Our manufacturing processes employ advanced techniques like cold forging, hot forging, and precision machining to ensure each fastener meets the highest standards. We adhere to various international standards, including ASTM (American Society for Testing and Materials), ASME (American Society of Mechanical Engineers), DIN (Deutsches Institut für Normung), and EN (European Norms), to ensure our products meet rigorous quality and performance criteria.

For quality assurance purposes, all our products are tested in our well-equipped laboratory. Some of the testing methods are tensile testing, which determines the strength of the material, impact testing for the ability to manage high-rate loads; and hardness testing. We also do intergranular corrosion testing, generally known as IGC testing, to determine the degree of corrosion resistance in the material and positive material identification testing to determine the actual composition of the tested material.

As a prominent manufacturer and supplier, we serve a wide range of industries, including aerospace, automotive, lighting, and electrical. We provide high-tensile SS fasteners, Monel 400, Inconel 625, Duplex 2205, and 904L Stainless Steel Fasteners, available in various sizes, shapes, and materials. Our products are offered with surface finishing options such as bright annealed painting, powder coating, anodising, and custom painting to enhance performance and appearance.

As of the most recent information available in India, the price for stainless steel fasteners ranges from ₹200 to ₹350 per kg, depending on the stainless steel fastener grades and specifications. At Sumit Impex, we are committed to offering competitive pricing while ensuring exceptional quality and reliability, providing fasteners that deliver outstanding value and performance.

Stainless Steel Fasteners

Standard Specification For Stainless Steel  Fastener

SpecificationsASTM F593, F594, F1554 / ASME SF593, F594, F1554
Fasteners sizeBolt / Screw Size : M3 – M56 | 3/6″ to 2″ | Custom Sizes
Nuts Size : M3 – M56 | 3/6″ to 2″ | Custom Sizes
Washers Size : M3 – M56 | 3/6″ to 2″ | Custom Sizes
Machine Screws Size : M1.6 – M12
Self Tapping Screw Size : No.2 – No. 14
Fasteners Length3 mm to 200 mm
Fastener ThreadsUNF, BSW, BSF, METRIC, UNC or as required
Standard of Stainless Steel FastenersDIN : DIN 934, DIN 931, DIN 970, DIN 933
UTS : UNEF, NPT, UNC, UNS, UNF, NPTF
ISO : JIS standards, ISO 4033, ISO 4032,
ANSI – American National Standards Institute
ASME B18.5
ANSI B 28.2.4 1M
as per defined in ASME B16.5 standard SS Stud Bolt length
ANSI B 18.2.4 2M
as per defined in ASME B18.2.2 SS Hex nuts
DimensionsDIN 931, 933, 934, 7991, 976, 125, ASME B18.2.1, B18.3
Surface CoatingPtfe Coated Stainless Steel Fasteners
Phosphate Coating
Teflon Coating
Zinc Coating
Hot Dipped Galvanizing Coating
Cadmium Coating
Xylon Coating
Fasteners FinishingStainless steel : Self-Colour, Passivated, Bright Zinc Plated (BZP), Hot Dip Galvanised (HDG), Stainless Steel, Sherardized, some special one like DACROMET Geometry and Mechanically Applied coating ,Dacroment, nickel plated, anodizing, plated zinc-nickel
Zinc (blue, black, yellow, white), black oxide.

Metric SS Fasteners

SS Fasteners TypeSocket Head Cap Screw
SS Fasteners SIZEM3 to M30
PROPERTY CLASSA2 – 70/80, A4 – 70/80
SS Fasteners StandardDIN 912 / ISO 4762
SS Fasteners TypeHex Head Screw (Full Thread)
SS Fasteners SIZEM3 to M30
PROPERTY CLASSA2 – 70/80, A4 – 70/80
SS Fasteners StandardDIN 933 / ISO 4017
SS Fasteners TypeHex Head Bolt (Partial Thread)
SS Fasteners SIZEM4 to M30
PROPERTY CLASSA2 – 70/80, A4 – 70/80
SS Fasteners StandardDIN 931 / ISO 4014
SS Fasteners TypeHex Nut
SS Fasteners SIZEM3 to M30
PROPERTY CLASSA2 – 70/80, A4 – 70/80
SS Fasteners StandardDIN 934 / ISO 4032
SS Fasteners TypePlain Washer
SS Fasteners SIZEM3 to M64
PROPERTY CLASSA2, A4
SS Fasteners StandardDIN 125 A
SS Fasteners TypeFlat – Section Spring Washer
SS Fasteners SIZEM3 to M36
PROPERTY CLASSA2, A4
SS Fasteners StandardDIN 127 B
SS Fasteners TypeSquare – Section Spring Washer
SS Fasteners SIZEM3 to M36
PROPERTY CLASSA2, A4
SS Fasteners StandardDIN 7980
SS Fasteners TypeThreaded Rod
SS Fasteners SIZEM3 to M36
PROPERTY CLASSA2 – 70/80, A4 – 70/80
SS Fasteners StandardDIN 975

SS Fasteners Metric Conversion Table

US
(inches)
Metric
(millimeters)
US
(inches)
Metric
(millimeters)
1/161.61-1/238
1/83.21-5/841
3/164.81-3/445
1/46.41-7/848
5/167.9251
3/89.52-1/457
11/16173-1/289
7/16112-1/264
1/2132-3/470
9/1614376
5/8163-1/483
3/4193-3/495
13/16214102
7/8224-1/2114
15/16245127
1-1/8296152
1-1/4326-1/2165
1255-1/2140
1-3/8357178

Stainless Steel  Fasteners Types

Stud Bolts

Stud Bolts

Bolts

Bolts

Nuts

Nuts

Washers

Washers

Contact Us For Quatation & Questions Related To Stainless Steel Fasteners

Stainless Steel Fasteners Applications

Export & Supply Destinations Of SS Fasteners

Afghanistan, Armenia, Azerbaijan, Bahrain, Bangladesh, Bhutan, British, China, Egypt, Hong Kong, India, Indonesia, Iran, Iraq, Israel, Japan, Jordan, Kuwait, Kyrgyzstan, Lebanon, Macau, Malaysia, Maldives, Mongolia, Myanmar, Nepal, North Korea, Oman, Philippines, Qatar, Russia, Saudi Arabia, Singapore, South Korea, Sri Lanka, Taiwan, Thailand, Turkey, United Arab Emirates, Vietnam.

Austria, Azerbaijan, Belarus, Belgium, Bulgaria, Croatia, Cyprus, Czechia/Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Moldova, Monaco, Netherlands, Norway, Poland, Portugal, Romania, Russia, Serbia, Slovakia, Spain, Sweden, Switzerland, Turkey, Ukraine, United Kingdom.

Algeria, Angola, Botswana, Burkina Faso, Burundi, Cameroon, Central African Republic, Egypt, Eswatini, Ethiopia, Gambia, Kenya, Liberia, Libya, Madagascar, Mauritania, Mauritius, Morocco, Mozambique, Namibia, Niger, Nigeria, Rwanda, Senegal, Seychelles, South Africa, Tanzania, Tunisia, Uganda, Zambia, Zimbabwe.

Antigua and Barbuda, Bahamas, Barbados, Belize, Canada, Costa Rica, Cuba, Dominica, Dominican Republic, El Salvador, Grenada, Guatemala, Haiti, Honduras, Jamaica, Mexico, Nicaragua, Panama, Saint Lucia, Saint Vincent and the Grenadines, Trinidad and Tobago, United States of America.

Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Guyana, Paraguay, Peru, Suriname, Uruguay, Venezuela.