TOOLCRAFT Expansion Pins, dimensions 21 mm x 36 mm, made from spring steel according to DIN 1481. These robust expansion pins have a diameter of 21 mm and a length of 36 mm, designed for secure fastening applications in mechanical assemblies. The spring steel material provides excellent elasticity and fatigue resistance, ensuring reliable performance under dynamic loads and vibration conditions. The pins are supplied in a convenient set of 25 pieces, offering a suitable quantity for various installation needs. The expansion pin design allows for easy insertion and removal while maintaining strong holding power in drilled holes. Suitable for various mechanical engineering applications where precise alignment and secure fastening are critical. The standardized DIN 1481 specification ensures consistent quality and dimensional accuracy across all pins in the set. The heavy-duty version offers increased durability compared to standard versions, making these pins suitable for demanding industrial environments and high-load applications. Each pin undergoes quality control to ensure dimensional tolerances and material properties comply with manufacturing standards.