This METRIC KEYSTOCK measures 12mm x 12mm and is 1 meter long, constructed from high-quality steel with a zinc oversized coating for superior corrosion resistance. It is designed for secure engagement between shafts and hubs in machinery, ensuring reliable power transmission. This keystock is perfect for use in automotive, industrial, and manufacturing environments where strength and durability are essential. Its precise dimensions and robust material make it a dependable choice for your keying needs.