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Metal expansion nuts are essential fastening components widely utilized in various engineering and construction applications. Designed to accommodate the natural expansion and contraction of materials due to temperature changes, these nuts offer a reliable solution for maintaining the integrity of connections in environments where traditional fastening methods may falter.

What Are Metal Expansion Nuts?

An M20 bolt generally has a thread pitch of 2.5 mm, which offers a good balance between load-bearing capacity and ease of installation. These bolts can come in various lengths to suit different applications, making them adaptable to various construction projects.

1. Variety of Sizes and Grades Hex head bolts are available in multiple sizes, lengths, and grades, making them suitable for a wide range of applications. The grading system, such as ASTM A325 or A490, denotes the tensile strength of the bolt, which is crucial for determining its load-bearing capacity.