About this product

This Grade 4.8 Black Hex Head Bolt is a fundamental fastener engineered for robust mechanical joining applications, offering reliable performance in a wide array of industrial settings. Its primary function is to securely connect two or more components through a threaded hole, providing significant tensile and shear strength. Constructed from high-tensile steel, these bolts are designed to meet stringent performance requirements, with Grade 4.8 indicating a minimum tensile strength of 400 MPa and a yield strength of 320 MPa, ensuring durability and load-bearing capacity. The black oxide finish provides a degree of corrosion resistance and a professional aesthetic, suitable for environments where appearance is a consideration. Available in a comprehensive range of standard metric sizes, these bolts are manufactured to precise specifications, ensuring consistent quality and interchangeability. Typical applications include general construction, machinery assembly, automotive manufacturing, and furniture production, making them a versatile choice for various industries. This product is ideal for international trade buyers, including importers, wholesalers, and large-scale retailers, seeking dependable fasteners with competitive pricing and assured quality from a reputable Chinese manufacturer and supplier. The commitment to good quality and on-time delivery further enhances their suitability for global procurement needs.