Stainless Steel Screws are manufactured from 304, T316 Stainless Steel These screws provide tight fastening for all types of sheet metal jacketing and duct work. Head styles are Pan Head Slotted, Pan Head Philip, Hex Head. Standard stocked sizes of no8, no 10 , 4.2mm, 4.8mm, 6.3mm Dia in length of 12mm, 13 mm, 16mm and 19mm. This can be provided with any type of washers.
Self Tapping Screws are designed to be screwed into soft materials such as plastic or sheet materials such as 1mm sheet steel. They are designed to tap their own hole after a pilot hole has been drilled.