Profile: LeJeune Bolt Company manufactures construction fastening systems. Our tension control bolting system is used for tensioning high strength structural bolts. Our heavy hex bolts are available from stock in sizes from 1/2" through 1-1/2" diameter and lengths up to 9-1/2". Our TC bolt installation tools include electric shear wrenches, manual shear wrenches, pneumatic shear wrenches and sockets. We also offer tension control bolts, nuts and washer assemblies for use in structural connections.