Forgefix socket screw slotted raised head nickle plated forgefix 100ss3550np these forgefix socket screws have a raised head and are designed for attaching electrical wall sockets and switches the screws have a slotted head and are nickel plated for increased durability used specifically for attaching electrical wall socket and switches to back plates the nickel plating process coats mild steel or stainless steel to considerably prolong the parts life nickel plating is probably the most