J.W. Winco 8N20P47/VR GN606 Socket Head Cap Screw with Serrated Flat Ball, Safety Twist Feature, M8 x 20 mm Thread Length, Alloy Steel, Black Oxide Finish

GN 606 socket head cap screws with ball point are used in applications where a ball point contact is required. The flat faced moveable ball allows the clamping or supporting of non-parallel surfaces. Indentation on the work piece is eliminated and the work piece does not alter its position during clamping. Socket head cap screws with safety twist ball is designed so the flat faced ball cannot twist more than a maximum of 9 degrees. This allows full clamping of the flat faced ball at all times.