Leave Your Message

China Suppliers Factory Q235 HDG Grade 4.8 8.8 Hex Bolt DIN931 Standard Sizes Available

Discover high-quality bolts manufactured in China, adhering to various international standards such as GB/T5783, GB/T5782, SH/T3404, DIN933, DIN931, ISO4014, ISO4017, UNI5737/UNI5739 Italian standard, ASME B18.2.3.1m, ASME B18.2.3.5m, and more. Our factory ensures that each bolt meets stringent specifications for reliable performance in various applications. As a trusted supplier, we provide optional standard sizes for metric outer hexagon bolts, including ANSI/ASME B18.2.Choose us for your bolt needs and experience the quality and precision that our China-based factory offers.

    item value
    Finish Hot dip galvanized
    Material Steel
    Place of Origin China
      Hebei
    Brand Name Ruisu
    Model Number M6-M48
    Standard GB DIN
    Product name Hex Bolt
    Grade 4.8/ 8.8/ 10.9/ 12.9 Ect
    Surface treatment HDG
    Size M6-M48
    Length 10mm-300mm
    Delivery time 7-25 Days
    Sample Supplied
    Port Tianjin Port
    Payment Term T/T
    Application Industry
    Bolt Appearance Standard Size Optional

    GB/T5783, GB/T5782, SH/T3404, DIN933, DIN931, ISO4014, ISO4017, UNI5737/UNI5739 Italian standard, ASME B18.2.3.1m, ASME B18.2.3.5m, ASME B18.2.3.6M metric outer hexagon, ANSI/ASME B18.2.1 and other standard dimensions.

    Nut Appearance Standard Size Optional

    GB/T6170, GB/T6172, GB/T6175, GB/T9125 (large hexagonal), HG/T20634 (special), HG/T20613 (special), SH/T3404, DIN934, ISO4032, ISO4035, UNI5587 heavy, UNI5588, ANSI(UNC/UNF/UN) American Standard Coarse/fine / 8-tooth permanent teeth, ANSI/ASME B18.2.2 American Heavy, ASME B18.2.1m, ASME B18.2.2m, ASME B18.2.3m, ASME B18.2.4.6m metric hexagon nuts, etc.

    Classification of Hot Dip Galvanized Bolts

    Hot-dip galvanized bolts are divided into ordinary hot-dip galvanized bolts and hot-dip galvanized bolts with reaming. According to the head shape: hexagonal head, round head, square head, sink head. The most common one is the hexagon.

    The head of a hot dip galvanized bolt is usually used where it needs to be joined. It is a non-standard part with a U-shaped shape, so it is also called a U-bolt. Hot dip galvanized bolts with threaded ends can be used in combination with nuts. It is mainly used to fix tubular or sheet objects. It is called a riding pin because of the way it holds things in place, just like riding a horse.

    Steel Structural Connection Bolts: Unless otherwise specified, hot dip galvanized bolts are usually plain class C thick bolts. The rod of class A and B bolts is machined by the lathe, with smooth surface and accurate size. It has a material performance grade of 8.8 and is difficult to manufacture and install and expensive, so it is rarely used. Class C bolts are made of unprocessed round steel, the size is not precise enough, and the material performance grade is 4.6 or 4.8. The connection has large deformation, easy installation and low production cost.

    Bolts are essential. Bolts are also known as industrial rice. As you can see, bolts are widely used. The application scope of bolt is: hot dip galvanized bolt, electronic products, mechanical products, digital products, electrical equipment, mechanical and electrical products. Bolts are also used in ships, vehicles, hydraulic engineering, and even chemical experiments.

    Frequently Asked Questions (FAQ)
    What standards do your hot dip galvanized bolts and nuts support?
    Our bolts support multiple standard sizes including GB/T5783, GB/T5782, SH/T3404, DIN933, DIN931, ISO4014, ISO4017, UNI5737/UNI5739, ASME B18.2.3.1m, ASME B18.2.3.5m, ASME B18.2.3.6M, and ANSI/ASME B18.2.1. Compatible nuts conform to GB/T6170, DIN934, ISO4032, ANSI/ASME B18.2.2, and other major international standards.
    What grades and surface treatments are available for these Hex Bolts?
    We offer steel Hex Bolts in grades 4.8, 8.8, 10.9, and 12.9. The surface treatment is Hot Dip Galvanized (HDG) to ensure excellent corrosion resistance.
    What are the differences between Class A/B and Class C bolts?
    Class A and B bolts are precision-machined by lathe, featuring a smooth surface, accurate size, and an 8.8 performance grade, making them more expensive and complex to manufacture. Class C bolts are made of unprocessed round steel, have a performance grade of 4.6 or 4.8, allow for easier installation, and offer a lower production cost.
    What are the typical applications for these hot dip galvanized bolts?
    They are widely used across various industries, including steel structural connections, electronic products, mechanical products, digital products, electrical equipment, mechanical and electrical products, ships, vehicles, hydraulic engineering, and chemical experiments.
    What are the size options, delivery times, and payment terms?
    The bolts are available in sizes from M6 to M48 and lengths from 10mm to 300mm. The delivery time is 7-25 days from Tianjin Port, with samples supplied. The standard payment term is T/T.