Pheinox R4 Stainless Steel Deck Screws by GRK Fasteners

Pheinox R4 Stainless Steel Deck Screws by GRK Fasteners

DecksDirect Item #5813

Pheinox R4 Stainless Steel Deck Screws by GRK Fasteners

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Starting at: $9.99

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 Durable Quality   DIY Friendly   Industry Leader 

GRK Fasteners offer hardware featuring exclusive weather-sealant and no pre-drilling... Learn More



Introducing PHEINOX, the newest R4 screw from GRK Fasteners. It has all the great components of original R4 Deck Screws, but with the added strength and corrosion resistance of stainless steel.

Key Features:
  305 grade stainless steel
  Great for interior or exterior applications
  Doesn't require pre-drilling
  Specially-designed under head pulls material away from hole to allow a perfectly flush finish

Product Specifications

Drive TypeStar/Torx
Head TypeFlat
Screw Length1-1/4", 1-1/2", 2", 2-1/2" 2-3/4" and 3-1/8"
Screw Size#8, #9 and #10
Material TypeStainless Steel
Pack Size

#8 x 1-1/4" = 100 Handy Pack
#8 x 1-1/2" = 100 Handy Pack and 857 Pro Pack
#9 x 2" = 100 Handy Pack
#10 x 2-1/2" = 100 Handy Pack, 425 Pro Pack and 2,500 Bulk Pack
#10 x 2-3/4" = 100 Handy Pack, 350 Pro Pack and 2,000 Bulk Pack
#10 x 3-1/8" = 100 Handy Pack, 305 Pro Pack and 1,500 Bulk Pack

Included Accessories#15 Starhead Bit (with #8 screws)
#25 Starhead Bit (with #9 and #10 screws)
WarrantyView GRK Warranty Information

Additional Information

Additional Information

DecksDirect Item # 5813
Manufacturer GRK Fasteners

R4 Deck Screws by GRK Fasteners Brochure (271 KB) 

GRK Limited Lifetime Warranty (85 KB) 


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GRK Fasteners feature exclusive weather-sealant and no pre-drilling to exceed expectations without breaking the bank. Founded in 1990, GRK Fasteners produces unique, high-quality deck screws for use in wood, metal, and concrete projects.


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GRK Fasteners offer unmatched versatility, from the tiniest trim screw to extra large structural screws. Each item goes through GRK's exclusive Climatex three-coat process, protecting the screws from rain, snow, cold, and heat.


GRK Fasteners are often the top choice for builders as their products are dependable and innovative, available here at


Features and Benefits
 Durable Quality This brand offers products that are built to last and withstand the elements.
 DIY Friendly This brand is reliable and easy-to-install for professionals and DIYers alike.
 Industry Leader This brand is known globally as a leader in premium decking products.
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