- Size and Package : This set includes M8 x 120mm bolts with a thread pitch of 1.25mm. The hex head measures 13 x 5mm (0.51 x 0.2 inches), while the nuts are 12.7 x 5.8mm (0.5 x 0.23 inches). Also included are flat washers sized 15.8 x 1.5mm (0.62 x 0.06 inches) and lock washers measuring 12.6 x 2.15mm (0.5 x 0.08 inches). Each package contains 12 complete sets of bolts, nuts, flat, and lock washers. - Material : Constructed from 304 stainless steel, these bolts and accessories are resistant to rust and corrosion. This high-quality material showcases excellent performance and durability, withstanding high temperatures and hard conditions, making it ideal for both indoor and outdoor uses. - Features : The external hexagonal head allows for easy drive, providing uniform force and reducing slipping. Coupled with spring washers and flat washers, the set ensures a secure fit and reliable retention, enhancing overall assembly performance and maintaining maximum tensile strength. - Easy to Install : The threaded design allows for easy penetration into materials, resulting in quick and secure connections. Simply place the nuts and washers, insert the screws into the pre-drilled holes, and use a driver for swift installation, making your project efficient and hassle-free. - Applications : Ideal for furniture assembly, appliances, automotive repairs, and outdoor projects, these bolts provide a robust solution for various fastening needs. Whether you are working on a DIY home project or professional assembly, this comprehensive kit ensures you have the right components for a reliable and durable connection.