Hex Nut with metric thread pitch and nylon-filled collar at its back end.When Screw reaches the collar, the thread and nylon form a tight, frictional fit, restricting movement of the screw when it is subjected to vibration.DIN 985
Material: Carbon steel / Nylon
Width across flats..
Super strong magnetic grip – bolt firmly stays on screwdriver even when shaking it;
Makes things easier – grab bolts and nuts from compartment box with the magnet;
Use back of the screwdriver to push nuts into slots.Totem Tips: use back of Totem Screwd..