Metric Bolts

Metric Bolt Sizes and Thread Pitch

Understanding metric bolt sizing and thread pitch specifications is essential for selecting appropriate fasteners for precision applications. Each metric bolt features standardized dimensions measured in millimeters, with unique thread configurations that distinguish them from imperial bolts. The thread pitch specification indicates the distance between adjacent threads, measured in millimeters rather than threads per inch like standard screws. Common metric bolts range from M3 to M36 diameters, with corresponding thread pitches that ensure compatibility with metric nuts and materials. Professional specifications include diameter, length, and thread pitch measurements that correspond directly to metric fasteners requirements. Stock inventory typically includes coarse and fine thread options, each offering distinct features for specific applications. The standardized thread system ensures that any metric bolt will properly engage with corresponding nuts manufactured to the same specifications. These unique characteristics make metric fasteners essential for international projects and equipment requiring precise dimensional control. Understanding these specifications helps professionals recommend appropriate bolts for applications demanding reliable performance and compatibility with metric components and materials.

Common Types of Metric Bolts

Metric bolts encompass various head styles and configurations designed to meet diverse application requirements across industries. Hex head bolts represent the most common type, featuring six-sided heads compatible with standard metric tools and offering excellent torque transfer capabilities. Socket head cap screws provide low-profile solutions where space constraints require compact fasteners while maintaining high strength characteristics. Flange bolts incorporate integrated washers that distribute load across wider areas, making them ideal for applications involving softer materials. Carriage bolts feature rounded heads with square necks that prevent rotation during installation, particularly useful for wood and composite materials. Button head screws offer aesthetic appeal with their smooth, rounded profiles while providing reliable fastening performance. Each type offers unique features suited to specific applications, from structural connections to precision machinery assembly. Professional stock includes various head styles manufactured from different materials to meet diverse performance requirements. The selection of appropriate metric bolt types depends on factors including accessibility, load requirements, and aesthetic considerations. Understanding these options helps professionals recommend the most suitable metric fasteners for each application, ensuring optimal performance and compatibility with corresponding nuts and specifications.