Spax Woodscrews With Yellox Coating 4.0mm x 30mm Box 1000 Option:5.0mm x 50mm Box 500 From classic looks to stylish From classic looks to stylish glaze colours fully guaranteed against normal wear and tear 3 ply polyester reinforced hose High pressure performance Flexible handling and guaranteed against defects in materials and workmanship Sets include The advantages and properties of the internationally exclusive SPAX YELLOX surface at a glance:YELLOX achieves corrosion protection that is more than 6 times greater than that offered by blue zinc plating at the same surface thickness (layer thickness of 4–6 µm with artificial atmospheric corrosion) YELLOX is free of chrome(VI) and thus far more environmentally friendly than conventional surfaces the screw retains its yellow appearance with the benefit of higher corrosion protection