PHEINOX stainless steel screws are made from only the best grade of stainless steel wire, 305. The unique characteristics of the PHEINOX wire gives our stainless steel screws unmatched performance, by maximizing both torque and increasing bending strength. GRK's patented R4, RSS, Cabinet, FIN/Trim, and RT Composite screws are all available in PHEINOX stainless steel. Use PHEINOX screws from GRK for projects that should last a lifetime.
GRK recommends the use of its PHEINOX stainless steel fasteners in tropical wood, cedar wood, pool, hot tub, sauna, and sea-side applications, as well as deck applications in areas with large daily temperature variances. The ultimate finish for superior all-weather corrosion protection.