1.Soltted round corner screw with nylok; 2.Various sizes and materials; 3.High quantity& ... name: slotted cheese head round corner screw;Material: stainless steel,iron,carbon steel,aluminum,brass,copper,etc; Surface Treatment: natural,zinc plated ... ,chorme plated,nickel plated,brass plated,nylok;Head Type: Flat head,dome head,cheese head ...