A fully assembled nut, washer and set screw/bolt. Fully certified and batch traceable. Set screws also known as set bolts are fully threaded and used for a multitude of tasks in both structural and non structural applications. Available in both MS - Mild Steel which is manufactured to grade 4.8 and used in non structural applications. Also HT - High Tensile, which is manufactured to 8.8 grade, these are suited to structural application. Available in Bright Zinc plate finish, Galvenised and Stainless Steel to suit most applications, the more common finish being Bright Zinc Plated which offers a good level of protection against the elements and can be easily overpainted.