Newport Fasteners

Has a similar thread design as a metric socket cap scre but it is fully threaded to the head. The dome shaped head is wider and has a lower profile than a socket cap screw and has a six-lobed recess. Used when a wider bearing surfac e or a smotther, more finished appearance is desired, or in material too thin to accommodate a countersunk head. Button head screws do not afford the strength of socket head cap screws due to their head geometry and are designed for light fastening applications.