Clear 18mm Mini Spacers For 3″ Corrugated Roofing Sheets Screws Universal – Fits All Brands

18mm Length – 14mm WideSuitable for all 3″ corrugated roofing sheets such as Ariel Vistalux, Corolux, Onduline, Bitumen & Palram sheets.Spacer will help prevent crushing the sheet when tightening screws.