Detail Specifications / Descriptions

For roofing sheet.
Roofing screw is suitable for the roof construction. If the roof’s materials are iron sheet or wood, roof screw could drill and tighten immediately. However, if the iron sheet’s thickness is within 1mm, we could use the self tapping screw. If it is over 1mm, we could use the self drilling screw.
Specifications: ANSI, IFI, DIN, ISO, BS, JIS, According to customer’s drawing.