Weld On Hinge Bushing replacement parts from Cottco Specialty Hardware will extend the life of your weld on bullet hinges. Made from 304 Stainless Steel or Brass and available from 8mm through 26mm, In Stock and Ready to Ship. For use in all applications including Weld On Hinges with Pin Diameter from .197" through .750", such as FSP-100, FSP-120, FSP-100-GF, FSP-260-GF, FBP-100.