The GRK R4 Multi-Purpose 316 Stainless Screws are corrosion resistant fasteners that are used for interior and exterior applications such as structural and framing. These Pheinox fasteners are manufactured of a 316 stainless wire which is the best grade of wire. GRK's 316 ...The GRK R4 Multi-Purpose 316 Stainless Screws are corrosion resistant fasteners that are used for interior and exterior applications such as structural and framing.
These Pheinox fasteners are manufactured of a 316 stainless wire which is the best grade of wire. GRK's 316 Stainless Screws provides an ultimate in anti-corrosion, as well as all-weather protection against the harshest elements.