Pheinox RSS Stainless Steel Lag Screws by GRK Fasteners - 6 Inch - 24 Pack


Pheinox RSS Stainless Steel Lag Screws by GRK Fasteners - 6 Inch - 24 Pack

DecksDirect Item #6929


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 Durable Quality   DIY Friendly   Industry Leader 

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



For a lag screw alternative that will stand up to even the harshest elements but doesn't require pre-drilling, choose PHEINOX™ RSS™ Stainless Steel Screws from GRK. They're made of hardened 305-grade stainless steel and are perfect for connecting posts to a deck. Among the unique features of the Pheinox RSS is its built-in washer head that doesn't have sharp edges plus a six-threaded CEE thread that reduces the likelihood of splitting because it enlarges the screw hole. For incredible drawing strength and no chance of rust, try Pheinox RSS Stainless Steel Screws.

Product Specifications

Drive TypeT-30 Star/Torx
Head TypeFlat
Screw Length6"
Screw Size5/16"
Material Type305 Stainless Steel
Pack Size

24 Pack

Coverage Estimaten/a
Included AccessoriesNone (#30 Starhead Bit by GRK Fasteners sold separately)
WarrantyView GRK Warranty Information

Additional Information

Additional Information

DecksDirect Item # 6929
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 require 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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