2 1/2" long PHEINOX™ Stainless Steel Screws (305 stainless steel grade) are another first from GRK Fasteners.
PHEINOX™ Screws provide a reasonably priced alternative when only stainless steel will do. Our special composition of PHEINOX™ stainless steel is one of a kind. It is hardened and rust free and is of the quality you come to expect from GRK products. All of our stainless steel products come with a limited lifetime warranty against staining and rusting.
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.
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Countersink Grid Pattern Example |
The GRK's are shipped to you via USPS Flat Rate Priority Mail. The box is heavy but well protected with interior boxes that act as cells to hold everything in tight. How many screws will you need for your project? Are you building the ramp from scratch or are you just re-sheeting an existing ramp with a high quality ramp surface such as Skatelite Pro or Ramp Armor Deluxe. A 4x8 sheet of ramp surfacing typically takes 70 screws to really screw it down with a tight grid pattern. So, if you purchased 16- 4x8 sheets of ramp surfacing you would need 1120 2" sheeting screws.
GRK’s R4™ screw has a new under head with saw-blade like 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. The screw head closes the hole off with precision, leaving no damaged fibers around the head. R4™ screws which are 2" and longer have a four threaded CEE thread that enlarges the screw hole for the non-threaded portion of the fastener. This technological advancement allows the wood to settle easily and increases the screw’s drawing strength, reducing the friction on the screw shank and lowering the driving torque. The R4™ is a multi-purpose screw that can be used in all woodworking and plastic applications.
