The design of a bolt structure also involves careful consideration of its mechanical properties, such as tensile strength, shear strength, and fatigue resistance
. Tensile strength refers to the maximum load a bolt can withstand while being pulled in tension, whereas shear strength is associated with the load bearing capacity when the bolt experiences forces perpendicular to its axis. Fatigue resistance is particularly important in structures subjected to repeated loading cycles, as it ensures that the bolt can withstand the wear and tear of regular operation without failure.The anchors come in various sizes, accommodating different screw diameters and load capacities. Depending on the specific type, they can be used in drywall, masonry, concrete, and even brick surfaces. The design of these anchors often features a pair of arms that open up inside the wall, distributing the weight of the hung item and minimizing the risk of damage to the wall material.