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GRK PHEINOX RT Composite 305 Stainless Steel Exterior Trim Screws Pro-Pak #8 x 3-1/8" - 385 pack
RT Composite Exterior Trim Screws
Install Right the First Time + Corrosion Resistance for Harsh Environments
- Interior / Exterior Use: Zero Stripping, with 6 points of contact
- Recessed Star Drive: eliminates mushrooming
- Trim Head: for a clean finished look
- W-Cut: Low torque, smoother drive
- Zip-Tip: No pre-drilling, faster penetration
- ESR-3201 Approved for structural application
- Case Hardened Steel for high tensile, torque and shear strength
- For interior/exterior use in; exterior PVC trim (Azek, Kleer, Koma), no pre-drilling is necessary. Climatek coated screws work well with CAMO system.
GRK has modified its innovative FIN/Trim Head screw to include reverse threading under the head of the fastener. This technology makes the RT Composite Trim Screw ideal for use in composite and cellular PVC trim.
Based on extensive tests, GRK has found that the reverse thread helps the screw head disappear beneath the surface of the classic wood composite material, reducing or eliminating the dimple that sometimes appears when using the FIN/Trim screw.
The unique characteristics of the PHEINOX wire give our stainless steel screws unmatched performance, by maximizing both torque and increasing bending strength.
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.
FOR BEST RESULTS, TRIM SCREWS SHOULD BE DRIVEN AT HALF SPEED. TO PROLONG THE LIFE OF THE #10 BIT, DO NOT USE AN IMPACT DRIVER ON THE #8 TRIM HEAD SCREW Suggested Uses Composite Wood and Wood Decking Window Jambs Door Jambs All Trim Applications.
Part # TRIM8318SSPP