"Non-standard custom fasteners" means fasteners that are customized according to specific needs. Compared with standard fasteners, non-standard custom fasteners may differ in size, material, shape, surface treatment, etc., to meet the requirements of specific equipment or scenarios. Non-standard custom fasteners are usually used in special engineering projects or specific equipment. For example, in some special environments, fasteners that are resistant to high temperature, corrosion or special materials need to be used. In addition, some custom equipment may require fasteners of a specific size or shape to ensure their proper operation. The manufacture of custom fasteners usually requires special design and production, so the cost can be relatively high. Customers can work with professional fastener manufacturers or suppliers to customize production according to their needs. This ensures that the fasteners are fully matched to the requirements of the equipment or scene, improving work efficiency and safety. It should be noted that the design and production of custom fasteners need to be evaluated and verified by professional engineers and technicians to ensure that they meet the relevant standards and requirements, and to guarantee their quality and reliability.