expansion bolts for structural steel

The term 10 x 1 refers to the dimensions of the screw. The first number, 10, denotes the length of the screw, typically measured from under the head. The following two numbers, x 1, represent the diameter and pitch respectively. In this case, the diameter is not specified (as often stands for a placeholder), but the pitch, 1, indicates the distance between each thread. A smaller pitch generally means greater holding power and stability.

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A hex washer head bolt is essentially a threaded rod with a hexagonal head, providing a larger surface area than a standard hex bolt. The integrated washer portion of the bolt serves two primary functions. Firstly, it distributes the clamping force over a wider area, preventing damage to the material being fastened and reducing the risk of loosening due to uneven pressure. Secondly, it increases the friction between the bolt and the surface, enhancing the holding power and ensuring a secure connection.

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