GRK R4 316 Stainless Steel Screws provide extreme corrosion resistance for the toughest environments including high exposure to chlorides - such as de-icing salts - and in coastal applications within 1 mile of the coast. These screws are also for use with cedar, redwood, and various wood species that have higher acid content.
Marine grade protection for superior corrosion resistance
Stain resistant in specialty woods with a higher acid content such as Cedar or Redwood