What is Grade 12.9 Bolts ?

Grade 12.9 bolts are technically the most ductile and durable alloys. Grade 12.9 bolts are commonly used for various applications. These grades are manufactured for high temperatures. Grade 12.9 bolts are considered the most malleable grade, providing extreme protection from different chemical procedures.

Grade 12.9 bolts are commonly used for various types of applications, and these bolts are ISO approved and have high tensile and yield strength. These bolts are available in multiple finishes, such as hot-dip galvanized and zinc plated.


Grade 12.9 Bolts, Class 12.9 Threaded Bar, High Tensile Grade 12.9 Stud Bolts, Class 12.9 Hex Nut dimensions, 12.9 Hex Head Bolts, ASME SF568 Grade 12.9 Bolts manufacturer in Mumbai, Maharashtra, India.

Sumit Impex is an astonishing manufacturer and supplier of grade 12.9 bolts. We supply these bolts globally, and we manufacture these bolts considering international and national standards.

Grade 12.9 bolts are commonly used to join two objects together, creating permanent or temporary joints between objects. These bolts are super-efficient and practical for cold as well as hot workings. These bolts are known for providing excellent stability at high and low temperatures. Grade 12.9 provides resistance from various chemical and physical reactions. These grades offer resistance from corrosion, crevice corrosion, and stress cracking.

Grade 12.9 bolts Specifications

Grade 12.9 bolts
Specification ASTM F568, ASME SF568
Size Dia 1.6mm to 100 mm Inch 3/4″ to 3.1/2″
Finish Zinc plated / Plain / Hot dip galvanized
Length 20mm to 200mm
Type High Tensile class 12.9 Fasteners, 12.9 Gr. high strength hexagonal screw M2, m16 gr 12.9 hex socket head cap bolt, Allen Bolt Hexagon Socket din912 Cap Head class 12.9, Etc.
Application Most commonly used in petroleum refineries, Boilers, Heat exchangers, Condensers, Pipelines, Cooling towers, Steam exhausts, Electric generation plants, On occasion will be found in fertilizer and chemical plants.
Grade C P S B
12.9 Grade 0.28-0.5 0.025 0.025 0.003
Grades Size Range PS [MPa] YS (min) [MPa] TS (min) [MPa] Hardness [Rockwell]
Class 12.9 1.6–100 970 1100 1220 C39-44

Other Products

Grade 12.9 Bolt Class 12.9 Hex Nut
Class 12.9 Hex Nut Grade 12.9 Hex Head Bolts
Class 12.9 Threaded Bar DIN 933 Bolt 12.9 grade bolt
grade 12.9 m7 bolt Class 12.9 Stainless steel Q235 /45# bolt
din912 grade 12.9 socket head cap screws Grade 12.9 hex bolt and nuts
12.9 Grade Bolts plow bolt and nuts grade 12.9,3F5108

Grade 12.9 bolts Price List

  • Grade 12.9 Structural Bolts
    US / Metric Ton (FOB Price) on request
  • Grade 12.9 Heavy Hex Bolts
    US / Metric Ton (FOB Price) on request
  • Grade 12.9 Hex Bolts
    US / Metric Ton (FOB Price) on request
  • Grade 12.9 Hexagon Bolts
    US / Metric Ton (FOB Price) on request
  • Grade 12.9 Head Hex 1 Hex Bolts
    US / Metric Ton (FOB Price) on request
  • Grade 12.9 Stud Hex Bolts
    US / Metric Ton (FOB Price) on request
  • Grade 12.9 Premium Heavy Hex Bolts
    US / Metric Ton (FOB Price) on request


We Sumit Impex Metal 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.

We pack our goods in numerous ways based on the products. We pack our products in multiple ways, such as,

  • Boxes and Crates
  • Shrink-wrapped
  • Carton boxes
  • Wooden pallets
  • Wooden boxes
  • Wooden crates

Testings (Destructive, Non Destructive)

  • Mechanical Testing Such as Tensile, Elongation, Reduction of Area
  • Sulfide Stress Corrosion Cracking (SSC), NACE TM 0177
  • Hydrogen-Induced Cracking (HIC) Test, NACE TM0284
  • Positive Material Identification – PMI Testing
  • Chemical Analysis – Spectro Analysis
  • Intergranular Corrosion (IGC) Test
  • Pitting Resistance Test
  • Dye Penetrant Test (DP Test)
  • Micro Test
  • Macro Test
  • Hardness Test
  • Flaring Test
  • Flattening Test
  • Hydrostatic Test
  • Radiography Test
  • Ultra Sonic Test (UT)
  • Eddy Current Testing
  • Impact Test
  • Bend Test

Application Industries

These material are not a single material but the name for a family of corrosion resistant steels. Like many scientific breakthrough the origins of stainless steel lies in a lucky accident. From the smallest part of zipper to the largest building skyscraper, stainless steel is an essential part of modern life.Stainless steel’s strength, resistance to corrosion and low maintenance make it the ideal material for a wide range of applications. It is also has a long life cycle and is 100% recyclable.

  • Construction
  • Bridges
  • Petrochemical Industry
  • Ship Building
  • Engineering
  • General Structural Purposes
  • Offshore and Onshore Services

Grade 12.9 Bolts Manufacturers

Country we serve / City we deliver

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

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

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