Earnest Machine is a manufacturer of bolts, nuts and screws for applications in various construction, automobile and mining industries. Its Bolts catalogue includes car bolts, tap bolts, wheel bolts and coil bolts. These bolts are made of steel and offered in different thread sizes and lengths. The company also offers a complete line of wheel nuts, hex nuts and wing nuts. The nuts and bolts manufactured by Earnest are available in both metric and imperial sizes.