GRK Fasteners

A wood deck chair sitting on a wood deck surrounded by AL13 Home aluminum railing in matte black on a sunny day.

GRK's quality fasteners are known worldwide - from small trim screws to 12 inch structural screws, every GRK product has at least one patent. Look no further for popular deck screws, concrete fasteners, and time-saving Rugged Structural Screws.

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  1. 5/16 Inch RSS Rugged Structural Screw by GRK Fasteners

    Starting at:
    As low as $15.99 Price depends on product options. Make a selection to update price.
  2. 3/8 Inch RSS Rugged Structural Screw by GRK Fasteners

    Starting at:
    As low as $71.99 Price depends on product options. Make a selection to update price.
  3. Pheinox RSS 305 Stainless Steel Screws by GRK Fasteners

    Starting at:
    As low as $45.99 Price depends on product options. Make a selection to update price.
  4. Reverse Thread (RT) Trim Head Screws by GRK Fasteners

    Starting at:
    As low as $44.99 Price depends on product options. Make a selection to update price.
  5. FIN/Trim Head Screws by GRK Fasteners

    Starting at:
    As low as $34.99 Price depends on product options. Make a selection to update price.
  6. Pheinox R4 Stainless Steel Deck Screws by GRK Fasteners

    Starting at:
    As low as $511.99 Price depends on product options. Make a selection to update price.
  7. R4 Deck Screws by GRK Fasteners

    Starting at:
    As low as $7.99 Price depends on product options. Make a selection to update price.
  8. Caliburn XL Concrete Screws by GRK Fasteners

    Starting at:
    As low as $19.99 Price depends on product options. Make a selection to update price.
  9. Starhead Bit by GRK Fasteners

    Starting at:
    As low as $4.99 Price depends on product options. Make a selection to update price.
  10. Starhead Bit in Bulk by GRK Fasteners

    Starting at:
    As low as $55.99 Price depends on product options. Make a selection to update price.
  11. Concrete Drill Bit

    Starting at:
    As low as $10.99 Price depends on product options. Make a selection to update price.

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GRK Fasteners

Browse the wide range of GRK Fasteners to find the perfect deck screw or structural screw for your backyard DIY deck build. From attaching composite deck boards in place to fastening together deck framing components, the strong steel GRK Fasteners are ideal for a long-lasting construction you can trust!

5/16 Inch RSS Rugged Structural Screw

Made out of hardened steel, this is a prime example of the quality that a GRK screw is known for. Designed to firmly and easily drive into wood and composite material, the 5/16 Inch GRK Rugged Structural Screw is strong enough to work with even the toughest surface construction. The GRK RSS features a special Climatek coating for the weather-resistance and durability you deserve.

3/8 Inch RSS Rugged Structural Screw

Get the ⅜ Inch GRK Rugged Structural Screws for the stability you need in fastening connector plates, hinges, and ledger boards. The ⅜ Inch GRK Fastener allows you to get accurate fastening points while providing high tensile, torque, and shear strength for a long-lasting construction.

Pheinox RSS 305 Stainless Steel Screw

Need something tougher than the lag screw and bolts currently available on the market? The GRK Pheinox RSS 305 screws are made out of hardened stainless steel for corrosion-resistance and feature a built-in washer head. Able to withstand the harshest elements, the GRK Pheinox RSS 305 Stainless Steel Screw works best for both indoor and outdoor projects.

Reverse Thread (RT) Trim Head Screw

The GRK Fasteners brand is known to push the envelope when it comes to screw and fastener technologies. One good example of innovation from this brand is this GRK Reverse Thread Trim Head screw. Made to reverse threading under the heads of fasteners, this is a subtle yet firm composite deck screw. The GRK Reverse Thread Trim Head Fastener innovation is great for composite decking projects. For the best results, consider a half speed application with your power drill when installing these screws.

FIN/Trim Head Screws

The perfect finishing choice for GRK fasteners, the FIN/Trim Head screws feature the smallest head in the GRK screw lineup. Excellent for installing the smaller bits in a construction project, these screw variants also come with a W-Cut thread to prevent nasty wood splits while a Climatek coating prevents corrosion in the long-term.

Pheinox R4 Stainless Steel Deck Screw

Decking projects require screw types that will be able to withstand all sorts of harsh elements. As one of the latest products from GRK Fasteners, the Pheinox R4 Stainless Steel Deck Screw offers additional durability with its stainless steel construction while a specially designed head pulls material away from the opening for a flush finish. This GRK screw is self-countersinking and great for indoor and outdoor construction projects.

R4 Deck Screws

When you need precision while maintaining a surface material's stability, check out the GRK R4 Deck Screw. Enhanced with self-contained cutting pockets and saw-blade cutting teeth, this GRK Fastener standout delivers into even the most brittle deck materials without cracking any surface! This works for all sorts of construction projects including wood, plastic, particle board, sheet metal, composite decking, and more.

Caliburn XL Concrete Screw

Drill into concrete, brick, stone, and masonry with ease and efficiency using the GRK Caliburn XL Concrete Screw. Ideal for mounting on a concrete base, the Caliburn XL Concrete Screw is professionally engineered to anchor deep within the material without cracking the surface. Be sure to pre-drill a pilot hole prior to attaching.

Concrete Drill Bit

Use a Concrete Drill Bit to fully drive and anchor in your GRK Caliburn Screw into stone or masonry. This drill bit is made out of a special alloy for a better boring motion and features a tip that can be resharpened for added longevity and drill power.

Starhead Bit

Make the most out of your GRK Fasteners screws by using the right kind of drill bit, the Starhead Drill Bit. Available in different configurations and sizes to match with all GRK Fastener types, the Starhead Bits are crafted from hardened steel and are sold in packs of 2.

Starhead Bit in Bulk

Need more bits for your projects? Get these handy Starhead Drill Bits in bulk and install GRK Deck Screws on all of your deck builds and backyard construction no matter the size!