Special featuresThe PROFTEC garden wood screws are made of stainless steel 410, a special type of stainless steel without the addition of nickel, which allows the screws to be post-hardened.This gives the screws the same strength properties as hardened steel, which prevents breakage during insertion.The lens head ensures a neat finish in the wood.To prevent the wood from splitting, the screw is equipped with a cutting tip; this type of drill tip removes residual material from the screw hole during insertion.These garden wood screws are very suitable for mounting Swedish rebate, pot lid boards, and other garden planks.Technical dataDiameter {mm} : 4Length {mm}: 40Thread length {mm}: 24Thread type: Partial threadHead model: Lens headDrive: TX-20Drive type: TXDrive size: 20Milling ribs: ExternalDrill tip type: Cutting tip type-17Head diameter {mm}: 7Wokkel: YesMaterial: RVS 410Lubricant: Gleitmo