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GRK Pheinox R4 Stainless Steel Screws


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Pheinox R4 Stainless Steel Screws

GRK Pheinox R4 Stainless Steel Screws are made of the highest quality 305 grade stainless. The Pheinox R4 screw is the perfect choice for installations where you want to keep corrosion to a minimum. GRK recommends the use of it's PHEINOX stainless steel fasteners in tropical woods, cedar, pool, hot tub, sauna, and seaside applications in areas with large daily temperature variances.

Available in Diameters #8 thru #10 and lengths from 1-14" thru 3-1/8", in Bulk Cartons, ProPaks, and HandyPaks.



GRK’s R4™ self-countersinking screw has an under head with saw-blade like patented cutting teeth and six self-contained cutting pockets. Together these features act like a circular saw blade, transporting the "drill dust" away from the edge of the screw hole while cutting a perfectly clean hole into even the most brittle materials without cracking any surface treatment. This design further enhances the R4™’s versatility by allowing the fastener to be installed without countersinking into even the hardest woods. The screw head closes the hole off with precision, leaving no damaged fibers around the head.

  • Pheinox R4 #8 Screws require a T-15 bit
  • Pheinox R4 #9 & #10 Screws require a T-25 bit

Additional Info

Additional Info

Package Quantity GRK Pheinox R4 Stainless Steel Screw quantities vary by selection
Search by Manufacturer GRK
Manufacturer Link http://www.grkfasteners.com/products/r4/pheinox-r4


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