Fasteners and bearings are essential engineering supplies crucial for assembling and enabling motion in countless machines and structures. Fasteners, including bolts, screws, rivets, and adhesives, join components securely. Bearings, such as ball, roller, and plain bearings, reduce friction between moving parts, allowing for smooth rotation or linear motion. Selecting the correct fasteners and bearings requires careful consideration of load requirements, material compatibility, environmental conditions, and application-specific needs. These components are fundamental to the functionality, reliability, and longevity of engineered systems.