Our lumber products are not listed currently in our on-line catalog. We have an extensive line of lumber products in inventory, please call the store for details. We do not offer shipping at this time. We apologize for any inconvenience.

GRK Fasteners PHEINOX R4 Flat Head Multi-Purpose Screw #10 x 3-1/8 L in.

GRK Fasteners

Available Inventory: 5
  • $31.99
    Unit price per 



GRK’s PHEINOX™ line of stainless steel fasteners feature designs from R4, RSS, Fin/Trim, and RT Composite screws in corrosion and stain resistant material.

GRK recommends PHEINOX™ 305 stainless steels screws for applications that require superior corrosion resistance in exterior environments with high moisture content, such as docks, boardwalks, pools, and hot tubs.

PHEINOX™ 305 stainless is also recommended for use with cedar, redwood and various other wood species that have higher acid content. PHEINOX™ 305 stainless steels screws are recommended for applications located more than 1 mile from the coast.

PHEINOX™ 316 stainless steels screws are recommended for applications where extreme corrosion resistance is necessary, such as environments with high exposure to chlorides- such as de-icing salts- and in coastal applications within 1 mile of the coast. They are
also suitable for use in chemically treated wood and naturally-protected wood such as cedar and redwood. 

PHEINOX™ 305 Stainless Steel
For use in cedar, redwood, specialty hardwood, IPE, and Mangaris
Corrosion resistance for wet environments
Stain resistant in specialty wood


We Also Recommend