3/8 1/2 ASTM A193 A194 Hex Heavy Duty Metal Bolt with Hex Nut B7 B8 8M ASME B16.5

3/8 1/2 ASTM A193 A194 Hex Heavy Duty Metal Bolt with Hex Nut B7 B8 8M ASME B16.5

Product Description:

Applications

1,Vibration Resistance
- Due to their strong structure and tight threading, hex bolts offer excellent vibration resistance, making them suitable for environments with heavy vibration or shocks, ensuring a secure connection.

2,Resistant to Environmental Changes
- Stainless steel and galvanized hex bolts can withstand harsh outdoor environments, including exposure to marine conditions and chemicals. Their anti-corrosive and oxidation-resistant properties provide long-lasting performance.

3,Aesthetic and Functional
- Hex bolts, especially stainless steel varieties, offer a smooth, polished appearance, making them ideal for applications where aesthetics matter, such as in architectural designs and decorative structures.

Hex bolts are indispensable in various industrial and consumer applications due to their strength, versatility, and ease of use. They provide reliable and durable fastening solutions across multiple sectors.

Generally required chromium content of 18% or more, nickel content of 8% or more, because of its good corrosion resistance, heat resistance and other advantages, often used in food processing, storage and transport, or applied to agriculture, auto parts, building materials, chemical industry, etc., is the most widely used stainless steel, accounting for almost more than half of the total production of stainless steel. 316 stainless steel generally require chromium content of more than 16%, nickel content of more than 10%, molybdenum content of more than 2%, nickel and molybdenum, the two alloying elements of the proportion of the enhancement, so that it has a better resistance to (acid) corrosion, welding performance, and so on, and therefore have a higher price, in the medical and surgical, fine industrial components, etc. to play a greater use.

ASTM A194 is a specification that covers various types of nuts made from carbon, alloy, and stainless steel, designed for use in high-pressure and high-temperature applications. The material properties of ASTM A194 nuts vary depending on the grade, with two notable grades being Grade 2H and Grade 8.

Grade 2H Nuts are made from quenched and tempered carbon steel, which gives them very high tensile strength and hardness. They can withstand temperatures up to approximately 1200°F (649°C), making them suitable for high-pressure and high-temperature environments such as oil and gas, petrochemical plants, and power generation facilities. However, their corrosion resistance is moderate and may require protective coatings.

Grade 8 Nuts, on the other hand, are made from high-strength stainless steel, typically AISI 304 or 316 variants. This material composition provides excellent corrosion resistance, making them ideal for use in corrosive environments such as marine and chemical processing industries. Grade 8 nuts have a lower tensile strength compared to Grade 2H and can tolerate temperatures up to approximately 842°F (450°C).

Both grades are manufactured to standardized dimensions to ensure compatibility with their respective bolts. Grade 2H nuts are designed for use with ASTM A193 Grade B7 bolts, while Grade 8 nuts are intended for use with ASTM A193 Grade B8 and B8M bolts. The choice between these grades depends on the specific requirements of the application, with Grade 2H being preferable for high-strength, high-temperature environments and Grade 8 being more suitable for applications requiring excellent corrosion resistance.

About Us






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Hunan Jiashan Hardware Tech as a branch company of J AND R METALWORK,established in 2007 and located in Changsha, Hunan, China.After almost 17 years management development and technical improvement, Jiashan is willing to be a leading supplier in hardware industry. Meanwhile, we are one of member of Hardware industrial Association and Green energy industry Association.

Jiashan is specialized in milling,turning,lathe 5 axis cnc machining parts,injection molding parts,alumium extrusion parts,laser cutting parts,sheet metal fabrication parts,wire edm parts,vacuum casting parts and fasteners.Those parts are widely service for electric vehicle,solar system,wind power system and construction machinery industry.

During17 years domestic and abroad market investigation, Jiashan's products are sold to many countries and regions including the North America, Europe, Australia, the Middle East and Asia. With owned the advanced cnc machinee, milling machine, polishing machine, stamping machine etc. Jiashan is able to degsin and produce varies OEM parts with drawings or samples provided. Further more, Jiashan also can help to provide a whole solution for modularity R&D of electric vehicle and solar system .

By constantly strengthening our management and consummate the quality guarantee system.In 2023, Jiashan acquired ISO9001:2008 quality certification. Currently,the 5S management mode is implemented in the whole Jiashan system.

Best quality and best service is and will be always our toppest concern.