Grabber's XGT Professional exterior-grade GrabberGard-coated fasteners are ideal for pressure-treated lumber applications and for all outdoor wood construction such as decking, patios, lawn furniture, window boxes. XGT unique engineering reduces wood splitting and provides excellent holding power. XGT QuickGrab point means super-fast starts.The flat head is fully seated when the head is flush with the work surfaceGrabberGard metal finish is a high-grade proprietary metal surface processing technology that prevents corrosionIt is a duplex coating constituting a zinc substrate and organic polymer topcoatThe distinguishing feature of GrabberGard is the joining and encapsulation the substrate with the fused organic surface coatingThe layers are bonded together through thermal fusion and this unique method of combining layers results in a combination of the coating filmsSuitable for use in non-coastal areas with all pressure-treated lumbers including ACQ1000 hrs salt spray/15 cycles Kesternich per DIN50018 no red rust testing certified