Sumit Impex is the leading manufacturer, supplier and exporter of a diverse selection of ASTM A193 Grade B7 / Grade B7 M Fasteners. These fasteners are distributed globally, known for their exceptional quality, and come in standard and customized sizes to suit our client’s needs.

Sumit Impex is a Supplier of ASTM A194 Grade 7 / Grade 7 M Fasteners, Biggest Stockist of ASTM A194 Grade 7 / Grade 7 M Fasteners as per Standards in Mumbai, India.

ASTM A194 Grade 7 Fastener, Grade 7 M Fasteners, ASTM A194 Bolts, ASTM A194 Grade 7 Fasteners in Best Price, Grade 7 Nuts, Grade 7 Bolts, ASTM A194 Screws, Grade 7 M Washers

ASTM A194 Grade 7 / Grade 7 M Fasteners are high-strength bolts, nuts, and studs meeting standards set by ASTM. Due to their exceptional mechanical properties and durability, these fasteners are commonly used in high-pressure and high-temperature applications, such as pressure vessels and piping systems. They provide reliable and secure fastening solutions in demanding industrial environments.

At Sumit Impex, we ensure thorough documentation for our ASTM A194 Grade 7 / Grade 7 M Fasteners to provide transparency and reliability. Our comprehensive package includes a commercial invoice, packaging list, fumigation certificate, heat treatment chart, and quality assurance plan. Additionally, we provide a NABL-approved lab test report and various test certificates, such as PMI (Positive Material Identification) Test Certificate, radiography test report, and Third-Party Inspection Certificate, demonstrating our commitment to quality and ensuring client satisfaction and confidence in our products.

ASTM A194 B7 Fasteners

Standard Specification For ASTM A194 Grade 7 / Grade 7 M Fasteners Fasteners

Fasteners size Bolt / 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 Length 3 mm to 200 mm
Fastener Threads UNF, BSW, BSF, METRIC, UNC or as required
Standard of Stainless Steel Fasteners DIN : DIN 934, DIN 931, DIN 970, DIN 933
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
Dimensions DIN 931, 933, 934, 7991, 976, 125, ASME B18.2.1, B18.3
Surface Coating Ptfe Coated Stainless Steel Fasteners
Phosphate Coating
Teflon Coating
Zinc Coating
Hot Dipped Galvanizing Coating
Cadmium Coating
Xylon Coating
Fasteners Finishing Stainless 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.

ASTM A194 Grade 7 / Grade 7 M Fasteners Types

Stud Bolts

Stud Bolts







ASTM A194 Grade 7 / Grade 7 M Fasteners Chemical Composition

Element Ferritic Steel
Chromium Molybdenum Alloy Steel
CompositionA, %
Carbon 0.37 – 0.49
Manganese 0.65 – 1.10
Phosphorus 0.035 max
Sulfur 0.04 max
Silicon 0.15 – 0.35
Chromium 0.75 – 1.20
Molybdenum 0.15 – 0.25

ASTM A193 Grade B7 / Grade B7 M Fasteners Mechanical Properties

Grade Completed Nuts Sample Nut After Heat Treatment
Brinell Hardness,
Rockwell Hardness Brinell Hardness,
BHN, min
Rockwell Hardness,
HRB, min
7 248 – 327 24 – 35 201 94

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ASTM A194 Grade 7 / Grade 7 M Fasteners Applications

Export & Supply Destinations Of ASTM A194 Grade 7 / Grade 7 M 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.