Self Tapping Screws SKIR'CO (50 Pcs) Roofing Screws, Hex Head, 4.8 X 25 Mm Painted Self-Drilling Screws With EPDM Washers (Pure White RAL 9010 Tek Screws The EPDM Rubber Sealing Washer can prevent water from the screw hole, seal the connection and prevent corrosion The most common usage: for fixing steel sheets into timber structures. Zinc plated steel screws are sturdy. Colour of screw head and washer: Black (RAL 9005)., Hex head. Roofing Screws SKIR'CO (10 Pcs) Painted 4.8 X 100 Mm, Hex Head, Self-Drilling Screws With EPDM Washers (Jet Black, RAL 9005 Zinc Plated Steel Screws Pack Of 50 These painted screws with EPDM sealing washers are used for various tasks at home and are also used in the construction industry. Zinc plated steel screws are heavy duty screws These screws do not require prior drilling. These painted screws with EPDM sealing washers are used for various tasks around the home and are also used in the construction industry. Building Roofing Tek Screws With Rubber Washers Tornillos Hexagonal Hex Head Self Drilling Screws With Epdm I provide invoices with VAT separately displayed.