Astm A307 Bolts


About Astm A307 Bolts

Visionalloy is a prominent company serving one of the rarest of rare fasteners known as ASTM A307 Bolts, which are engulfing the mechanical and chemical needs in their specification for carbon steel bolts. However, the three variating grades are named grade A and grade B, along with grade C, which is carbon steel bolts and is also considered by the specification of these fasteners. The intended usage, along with the tensile strength, is the actual designation of ASTM A307 Bolts

Category wise each fasteners indication suggests their major use and specialty for information grade A category having ASTM A307 Carbon Steel Bolts serves tensile strength (minimum) by 60 KSI, which is usually used for general purpose applications. And the grade 2 category has ASTM A 307 Screws, which gives tensile strength from 60 KSI to 100 KSI. Exactly the contrasting applications seek both fasteners. In simple terms, grade 2 is used by the applications pipping system having flanged iron joints, and the general-purpose application just uses grade A. However, on the next side, we have the grade C category having ASTM A307m Hex Nut, which serves yield strength by 36 KSI.

ASTM F1554 Gr.36 is the official replacement in grade C fasteners. According to the specimen sampling specification, quality testing for the ASTM A307 Socket Head Fasteners is highly mandatory to note some stringent values of various parameters. The parameters are not just about the chemical section but also the elongation, hardness, yield point, and tensile section and the dimension embedded in the mechanical attributes. Although the above parameters’ checking is conducted, it must not be considered for the other segments such as forming screws or thread cutting, machine screws, and mechanical expansion along with other similar fasteners that are externally threaded.

ASME SA 307 Carbon Steel Stud provides some amazing features like being lightweight, accurate by dimensions, robust construction, and many more, which is all the way hard-worked did by our professional team which has the only aim of quality serving, such that various checking based on quality parameters are conducted on each grade manufactured. The ASME SA 307 Studs are produced in major volumes due to different industries’ numerous demands coming daily. Customers if need basic size grade we serve them very fast. Still, for dimensional customization, our experts’ time to delivery is slightly farther due to dimensional checking done by our experts such that the client receives the best quality than any other dealer.

Formation of nickel carbonyl takes place at temperature by 40 Degree C to 80 Degree C possessing sulphur catalyst where carbon monoxide complies ASME SA 307 Fasteners‘ reaction. ASME SA Grade B Fasteners nickel distillation gives creation to pentacarbonyl (served by iron), which is again a low process along with the introduction of dicobalt octacarbonyl takes place.

Information of Astm A307 Bolts


DIN, ASTM, BS and all International Standards


+/-0.01mm to +/-0.05mm


3 mm to 200 mm |Custom Sizes


5 Pices


M3 - M56 | 3/6" to 2" | Custom Sizes

Special Grade

Stainless Steel 310 ,316,317,347


canton, pallet, Small Boxs / carton / pallet, or customer request

Top Manufacturers

SPAX® Screws, GKW, Unbrako, Kundan, APL, Sundaram Precision, Infasco, EBY Fastener Etc.

Comparative International Stainless Steel Fasteners Grades

properties of Astm A307 Bolts

  • Mechanical Properties
  • Chemical Composition

Makes Available of Astm A307 Bolts

Thyssenkrupp Make Astm A307 Bolts

Outokumpu Make Astm A307 Bolts

Acerinox Make Astm A307 Bolts

Mukand Steel Make Astm A307 Bolts

Laxcon Steel Make Astm A307 Bolts

JSW Make Astm A307 Bolts


  • Packaging
  • Testings (Destructive, Non Destructive)
  • Application Industries
  • We Visionalloys Ensure the best quality of Packing , because its play important role especially in a case of international shipments in which consignment pass through various channels to reach the ultimate destination, so we put extraordinary concern regarding packaging.
Boxes and Crates Shrink-wrapped
Carton boxes Wooden pallets
Wooden boxes Wooden crates
Testings (Destructive, Non Destructive)
  • Chemical Analysis – Spectro Analysis
  • Intergranular Corrosion (IGC) Test
  • Pitting Resistance Test
  • Dye Penetrant Test (DP Test)
  • Micro Test
  • Macro Test
  • Hardness Test
  • Flaring Test
Application Industries
  • Construction
  • Bridges
  • Petrochemical Industry
  • Ship Building
  • Engineering
  • General Structural Purposes
  • Offshore and Onshore Services

Delivery Available

Jamshedpur, Lahore, Geoje-si, Jakarta, Kolkata, Gimhae-si, Vung Tau, Karachi, Istanbul, Manama, Kuwait City, Howrah, Hanoi, Hong Kong, New Delhi, Calgary, Ranchi, Muscat, Hyderabad, Mumbai, Moscow, Kuala Lumpur, Nashik, Busan, Ho Chi Minh City, Singapore, Aberdeen, Algiers, Cairo, Chandigarh, Dallas, Milan, Ahmedabad, Houston, Ulsan, Visakhapatnam, Colombo, New York, Chennai, Toronto, Brisbane, Petaling Jaya, Jaipur, Navi Mumbai, Atyrau, Jeddah, Secunderabad, Kanpur, Gurgaon, Bangkok, Indore, Rio de Janeiro, Montreal, Al Khobar, Riyadh, London, Baroda, Granada, Ankara, Ahvaz, Port-of-Spain, Caracas, Vadodara, Sydney, Thiruvananthapuram, Lagos, Pimpri-Chinchwad, Ernakulam, Nagpur, Coimbatore, Mexico City, Santiago, Abu Dhabi, Dammam, Surat, Ludhiana, Bogota, Courbevoie, Melbourne, Noida, Tehran, Perth, Bengaluru, Haryana, Edmonton, Los Angeles, Faridabad, Seoul, Madrid, Sharjah, Bhopal, Thane, La Victoria, Pune, Dubai, Chiyoda, Doha, Al Jubail

Poland, Thailand, Gabon, India, Tibet, Australia, Nigeria, Angola, Sri Lanka, Libya, Hong Kong, Mexico, Kuwait, Switzerland, Bhutan, Bulgaria, Nepal, Singapore, China, Kenya, Croatia, Japan, Sweden, Trinidad & Tobago,Tunisia, Egypt, France, Bolivia, Peru, Mexico, United Kingdom, Austria, Portugal, United Arab Emirates, Jordan, Ecuador, Nigeria, Chile, Czech Republic, Philippines, Iran, Chile, Netherlands, Canada, Namibia, Norway, Puerto Rico, Yemen, Romania, Mongolia, Brazil, Costa Rica, South Korea, Finland, Lithuania, Italy, Qatar, Colombia, Russia, Lebanon, Indonesia, Bangladesh, Zimbabwe, New Zealand, Belgium, Taiwan, Poland, Macau, Israel, Serbia, Malaysia, Germany, Venezuela, Afghanistan, Ireland, Slovakia, Kazakhstan, Ghana, Turkey, South Africa, Azerbaijan, Oman, Belarus, Gambia, Saudi Arabia, Ukraine, Morocco, Greece, Spain, Pakistan, United States, Iraq, Iran, Bahrain, Algeria, Argentina, Hungary, Denmark, Estonia, Vietnam