The BigHead® Hex Nut is a bondable hex nut attached to a galvanized or stainless steel head. They are available in different standard sizes and head shapes, to suit your specific application needs. These bondable Hex Nuts are available with or without a sighted center hole, and may be customized to suit your application needs. Their large perforated "head" provides an invisible, molded-in fastener, fixed for life, with very high torque and shear resistance.