1/2 bore galvanised wave rings solid steel sets screws style (4 pieces). Quantity per order: 4 pieces. Style: carbon steel with galvanised coating. Size: 1/2 inch. Material: carbon steel with black oxide coating. product description product description This Jeremywell grub screw shaft collar is made of carbon steel with galvanised steel coating. The setscrewtype wave collar has improved performance to hold when the shaft material is softer than the material, the low grub screw axial loads and easy positioning. It is made of carbon steel for weldability and its zinc plated coating will provide better corrosion resistance than regular steel. This collar is equipped with a socket cuppoint adjusting screw for the collar to secure to the shaft. The operating temperature for this collar range from 17 to 121 °C (0 to 250 degrees F). This wave collar fits in various applications and can be used in almost all types of machinery and industry. For example, transmission arrangements, engine bases, machine tools, drive shafts, agricultural equipment, medical equipment, and paper and steel equipment equipment, automotive industry, manufacturing industry, hobby crafts and many more.