TIMco\'s 150 range have a countersunk head with a metric thread and self-drilling tip. Product specificationDescriptionS/Drill PVC Screw CSK - BZPSKU150ZPack TypeBoxGauge (Metric)4Recess TypePhillipsHead TypeCountersunkLength (mm)16Size (Metric)M4 x 16Colour/PlatingZincPack Qty (Pcs)1000Thread TypeMetricTip DesignSelf-DrillSizeM4 x 16