20mm Wood Screws

You'll find many types of 20mm wood screws in this category, such as chipboard screws, self tapping screws, type 17 wood screws, hex head screws, coach screw etc

For specific types of screws, please use the top menu or use the filtering panel to the left hand side of the page

How To Size 20mm Wood Screws

20mm length refers to the length of the wood screw. All screw lengths are sized in millimetres. Countersunk screws are sized inclusive of the head. Pan head or hex head type screws are sized from the under side flat section of the head to the end of the tip or point. Lengths are inclusive of the point, whether they are needle point of a type 17 self drill point.