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Various Types of Standards of Bolts Fasteners?

Various Types of Standards of Bolts Fasteners?

Bolts and fasteners might seem like simple components, but they’re crucial in holding together structures, machines, and equipment across industries. Their importance lies not just in their basic function but also in their diverse standards, each designed for specific purposes. Let’s delve into the world of bolts and fasteners, exploring the various standards that govern their design and application.

Understanding Bolts and Fasteners

Bolts and fasteners are mechanical devices used to join two or more objects together. They come in various shapes, sizes, and materials, serving different purposes based on the requirements of the application. These components play a pivotal role in industries ranging from construction and automotive to aerospace and manufacturing.

Standards for Bolts and Fasteners

Numerous standards are established globally to ensure the quality, compatibility, and reliability of bolts and fasteners. Here are some prominent ones:

(International Organization for Standardization)
(American Society for Testing and Materials)
(Deutsches Institut für Normung – German Institute for Standardization)
(British Standards)
ISO 898: This standard specifies mechanical and physical properties of bolts, screws, and studs made of carbon steel and alloy steel.ASTM F568: Covers the requirements for carbon and alloy steel externally threaded metric bolts, screws, and studs.DIN 931 and DIN 933: These are specifications for hexagon head bolts with partial threads (931) and full threads (933).BS 3692: Specifies the general requirements for steel and nickel alloy bolts, screws, and studs.
ASTM A193: Focuses on alloy steel and stainless steel bolting materials for high-temperature or high-pressure service.DIN 912: Deals with socket head cap screws.BS EN 15048 and BS EN 14399: Standards for non-preloaded structural bolting assemblies (15048) and high-strength structural bolting (14399).
ASTM A325 and A490: Standards specifically for structural bolts used in steel-to-steel structural connections.
Standard of Bolt Fastener

Factors Influencing Choice of Standard

The selection of a specific standard for bolts and fasteners depends on various factors:

  • Application: Different applications require different levels of strength, corrosion resistance, and other properties.
  • Material: Standards vary based on the materials used, such as stainless steel, carbon steel, or alloys.
  • Environmental Conditions: Consideration for exposure to elements like moisture, chemicals, or extreme temperatures.

Importance of Adhering to Standards

Adhering to established standards is critical for ensuring safety, reliability, and interchangeability of bolts and fasteners. It guarantees that these components meet specified strength, durability, and performance criteria.


Bolts and fasteners might seem small, but their role in maintaining the integrity of structures and equipment is monumental. Understanding and adhering to the various standards governing their design and usage is paramount for ensuring safety, efficiency, and reliability across industries. By adhering to these standards, manufacturers and users can trust in the quality and performance of these seemingly humble yet vital components.

Bhansali Metalloys Inc is one of the leading Manufacturer, Exporters, and Suppliers of High Quality Bolts all over in India. We are Manufacturer, Supplier and Dealer of various types of Fasteners such as Bolts, Nuts, Threaded Rods, Screws, Washers and many more. We are Bolts Manufacturer in India. These Bolts are available in different grades and materials. We are Bolts Manufacturer, Supplier, Dealer, and Exporter in India. We are Bolts Supplier in India. Contact Us +919152160158 or email to for Bolts price list.

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Each Stainless Steel Bolts is otherwise designed based on the characteristics of the applying and additionally the pressure. Consequently, different industries use different Bolts. We also produce customized Bolts Products at our factory as per our client’s requirements. For any types of Bolts Price List Call on +91 9152160158 or drop an Email to |

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