The terms 3% and 4% often relate to the percentage of the anchor bolt’s yield strength in relation to the concrete’s compressive strength. For example, a 3% concrete anchor bolt means that the bolt can withstand loads up to 3% of the concrete's yield strength, while a 4% bolt can handle loads up to 4%. This distinction is vital for engineers and contractors, as it influences load calculations, safety factors, and the overall design of the structure.

Chemical anchors have found widespread use in numerous projects. In the realm of high-rise buildings, they are commonly used to secure structural elements such as steel beams and precast concrete panels. In civil engineering, chemical anchors are employed to attach safety barriers and roadway signs to existing structures.