R4 26137 Screw

GRK Fasteners R4 26137 Screw

Price $103.99
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PHEINOX stainless steel screws are made from only the best grade of stainless steel wire, 305. The unique characteristics of the PHEINOX wire give our stainless steel screws unmatched performance, by maximizing both torque and increasing bending strength. 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. GRK recommends PHEINOX 305 stainless steel screws for applications that require superior corrosion resistance in wet environments such as decks, boardwalks, pools and hot tubs. PHEINOX 305 stainless is also recommended for use with cedar, red-wood and various other wood substrates that have higher acid content as well as for composite deck boards. PHEINOX 305 stainless steel screws are recommended for applications located more than 1 mile from the coast.

  • #10 Thread
  • 3-1/8 in L
  • Star Drive
  • Stainless Steel
  • No pre-drilling unless material requires
  • Corrosion resistance for harsh environments
  • Stain-resistant in specialty wood
  • Self countersinking

Theisen's standard returns and exchanges policy: All returns must be completed within 90 days of purchase unless otherwise noted. All items must be in new, unused condition and contain all original packaging and accessories. Some exclusions apply. For more information on our policy or to learn how to return an item click here.

Proposition 65 Warnings! 

Note: These warnings do not apply to food products.

 WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate, which are known to the State of California to cause cancer and birth defects or other reproductive harm.

 WARNING: This product can expose you to chemicals including lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm.  For more information go to www.P65Warnings.ca.gov.