GRK Screws 10231 5/16x5-1/8 Star Drive Washer Head Climatek Coated Steel RSS Rugged Structural Screws, 300/Box
GRK Screws 10231 5/16x5-1/8 Star Drive Washer Head Climatek Coated Steel RSS Rugged Structural Screws, 300/Box
GRK Screws 10231 5/16x5-1/8 Star Drive Washer Head Climatek Coated Steel RSS Rugged Structural Screws, 300/Box
GRK Screws 10231 5/16x5-1/8 Star Drive Washer Head Climatek Coated Steel RSS Rugged Structural Screws, 300/Box
GRK Screws 10231 5/16x5-1/8 Star Drive Washer Head Climatek Coated Steel RSS Rugged Structural Screws, 300/Box
GRK Screws 10231 5/16x5-1/8 Star Drive Washer Head Climatek Coated Steel RSS Rugged Structural Screws, 300/Box
GRK Screws 10231 5/16x5-1/8 Star Drive Washer Head Climatek Coated Steel RSS Rugged Structural Screws, 300/Box
GRK Screws 10231 5/16x5-1/8 Star Drive Washer Head Climatek Coated Steel RSS Rugged Structural Screws, 300/Box
GRK Screws 10231 5/16x5-1/8 Star Drive Washer Head Climatek Coated Steel RSS Rugged Structural Screws, 300/Box
GRK Screws 10231 5/16x5-1/8 Star Drive Washer Head Climatek Coated Steel RSS Rugged Structural Screws, 300/Box

GRK Fasteners RSS™ 5/16 x 5-1/8 Inch, Structural Screws, 300 PCS, Rust Resistant Climatek™ Coating, Heavy-Duty Framing & Decking Screws, Fast Bite Tip, Star Drive Recess, Gold

$238.22

MPN: 10231

Brand: GRK
Barcode: 772691102317
Availability : In Stock Pre order Out of stock

Type: Bulk

Bulk

Length: 5-1/8 in.

5-1/8 in.

Diameter: 5/16 in.

5/16 in.
Add to Wishlist

Minimum order quantity is .

Maximum order quantity is .
The product can be bought in quantity increments of .

left in stock.

GRK 10231

The GRK RSS Rugged Structural Wood Screw is a professional-grade fastener designed for heavy-duty framing, decking, and construction projects. These premium screws deliver superior performance in applications, including deck building, timber framing, laminated beams, pole barns. GRK’s Climatek™ coating, provides exceptional corrosion resistance, making these construction screws ideal for pressure-treated lumber, cedar, and all other wood applications. The patented Fast Bite Tip and Zip-Tip™ technology eliminates the need for pilot holes, while the W-Cut™ design ensures smooth, low-torque driving in all wood types. ICC-ES ESR-2442 approved for structural applications, these self-drilling screws are trusted by professional builders and DIYers alike. The star drive head with 6-points of contact prevents cam outs and head stripping, making these wood screws the choice for demanding construction and home improvement projects.

Specifications

GRK 10231

•Heavy Duty Lag Screw Alternative: Eliminates pre-drilling in most woods with Zip-Tip technology. Installs 3x faster than traditional lag screws
•ESR-2442 Code Approved For Structural Applications: Engineered for professional-grade connections in heavy duty framing, multi-ply beams, and timber framing. Integrated washer head delivers maximum clamping force for zero-gap joints in LVL, LSL, and engineered lumber.
•Advanced Corrosion Protection: Rust resistant Climatek™ coating provides exceptional durability for outdoor use and in pressure-treated lumber applications
•W-cut Thread Design: Reduces installation torque by 40% for smoother, faster driving. CEE threads minimize splitting in dense hardwoods, engineered lumber, and laminated beams.
•Precision Engineering: Star/Torx drive recess with 6 points of contact prevents stripping and minimizes wobble between screws and bits.





Description

GRK 10231

The GRK RSS Rugged Structural Wood Screw is a professional-grade fastener designed for heavy-duty framing, decking, and construction projects. These premium screws deliver superior performance in applications, including deck building, timber framing, laminated beams, pole barns. GRK’s Climatek™ coating, provides exceptional corrosion resistance, making these construction screws ideal for pressure-treated lumber, cedar, and all other wood applications. The patented Fast Bite Tip and Zip-Tip™ technology eliminates the need for pilot holes, while the W-Cut™ design ensures smooth, low-torque driving in all wood types. ICC-ES ESR-2442 approved for structural applications, these self-drilling screws are trusted by professional builders and DIYers alike. The star drive head with 6-points of contact prevents cam outs and head stripping, making these wood screws the choice for demanding construction and home improvement projects.

Additional Information
Type

Bulk

Length

5-1/8 in.

Diameter

5/16 in.

Customer Reviews

Overall rating: 4.5 / 5 from 11 reviews.

I've used GRK fasteners for constructing a 2-level deck and dozens propagation benches, growing benches, and raised beds for my backyard nursery. Never let me down. The 5-1/8" is great for fastening 2x lumber into end grain. The screw design drills its own hole, reams the hole a bit in the top 2x, and makes it trivial to tightly snug boards together. I've bought so many 50 packs in 4 different lengths that I'm now just buying the bulk packs.

GRK Screws 10231 5/16x5-1/8 Star Drive Washer Head Climatek Coated Steel RSS Rugged Structural Screws, 300/Box

I have used GRK fasteners on several projects in the past (fence work) and they always have been very easy to use. It is a very well engineered fastener. That chunk cut out of the tip makes it like a drill to get started in the wood very easy. Just above the threads (close to the end the bit fits into) is a part they call a CEE Thread that drills out the last inch or so a little wider than the rest of the shaft. This is so the part that you are fastening to the wood is not in the threaded part of the work. This allows the piece to be drawn in very tight by the star drive head, which is kind of like having a washer by the head (no pulling the screw too far through the work).Overall it is like a mini lag bolt with a washer. And is approved for use in treated lumber. The bulk price at Amazon was the best . I have NEVER had one break, and only a few (5 or 6) out of almost a thousand have had the star head that was not able to take the bit properly to be able to use.

GRK Screws 10231 5/16x5-1/8 Star Drive Washer Head Climatek Coated Steel RSS Rugged Structural Screws, 300/Box