AutomotiveBathroomBuilding SuppliesCleaning SuppliesElectricalFlooringHardwareHeating & CoolingHoliday DecorationsHome DecorWindow TreatmentsKitchenLawn & GardenLighting & Ceiling FansMoulding & MillworkOutdoorsPaintPlumbingSmart Home, Security, Wi-FiSports & FitnessStorage & OrganizationToolsWindows & DoorsAppliancesAnimal & PetcareRefrigeratorsWashers & DryersBest SellersRentalGift CardsInstallationsCooktop InstallationDishwasher InstallationGarbage Disposal InstallationOver The Range Microwave InstallationRange Hood InstallationRange InstallationRefrigerator InstallationWall Oven InstallationWasher And Dryer InstallationBathroom Remodel InstallationCustom Shower Door InstallationLSink InstallationToilet InstallationVanity InstallationBlinds And Shades InstallationInterior Shutter InstallationWindow Treatment InstallationDoor InstallationGarage Door InstallationExterior Door InstallationWindow InstallationEV Charger InstallationStandby Generator InstallationCeiling Fan InstallationSmart Home InstallationSolar Power InstallationArtificial Grass InstallationDecking InstallationFence InstallationGutter InstallationPlayset InstallationRoof InstallationShed InstallationSiding InstallationSolar Power InstallationCarpet InstallationHardwood Floor InstallationLaminate Flooring InstallationTile Floor InstallationVinyl Floor InstallationHVAC InstallationHVAC ServiceInsulation InstallationWater Heater InstallationWater Treatment InstallationBathtub To Shower Conversion ServicesAccessible Home Virtual AssistantWheelchair Ramp InstallationHome Accessibility InstallationHome Organization InstallationAppliance InstallationBacksplash InstallationCabinet InstallationCabinet RefacingCountertop InstallationGarbage Disposal InstallationKitchen Design ServicesKitchen Sink Installation
Deals by Department
Shop All
More Ways to Save
Prices, Promotions, styles, and availability may vary. Our local stores do not honor online pricing. Prices and availability of products and services are subject to change without notice. Errors will be corrected where discovered, and Lowe's reserves the right to revoke any stated offer and to correct any errors, inaccuracies or omissions including after an order has been submitted.
GRK Fasteners R4 #8 x 2-1/2-in Polymer Exterior Wood screws ( 3500 -Per Box )
Item #6287308 |
Model #00079
4.8
$313.30
Length Measurement: 2-1/2-in
Screw Thickness: #8
Package Quantity: 3500
Delivery
GRK Fasteners R4 #8 x 2-1/2-in Polymer Exterior Wood screws ( 3500 -Per Box )
4.8
$313.30
Best Price. Guaranteed
Find a lower price on an exact item? We'll match it. Some exclusions apply.
Learn MorePay Your Way
Credit card, PayPal or Buy Now, Pay Later options available at checkout. Your choice.
Learn MoreGRK R4 Multi-Purpose Screw is a versatile fastener that delivers increased productivity for hundreds of applications. Its feature-rich design provides a fast and reliable connection every time. R4 Multi-Purpose Screws have a Climatek Coating for installation in both interior and exterior conditions where exposure to moisture is intermittent and is code-approved for use in treated lumber.
Fast Bite Tip starts fast with less force than the competition, no pre-drilling
For use in wood, particle-board, cement fiberboard, plastic, sheet metal
Precision Fit Reduces wobble between R4 screws and GRK bits for improved productivity
W-cut low installation torque allows for fast driving and ease of install
CEE Thread enlarges hole to reduce splitting, optimized thread length improves clamping force for increased drawing power
Climatek coating for interior and exterior applications
Common project applications: remodeling, fencing, storage, cabinets, framing
Underhead cutting teeth for flush seating
ESR-3201 approved for structural applications
General | |||
|---|---|---|---|
Finish | Polymer | Use Location | Exterior |
Manufacturer Color/Finish | Yellow Zinc | Head Type | Countersinking |
Series Name | R4 | Measure Type | Standard (SAE) |
Type | Wood screws | Thread Type | Coarse |
Material | Steel | Contact Type Allowed | None |
Package Quantity | 3500 | Point Type | Self-drilling |
Dimensions | |||
|---|---|---|---|
Length Measurement | 2-1/2-in | Screw Thickness | #8 |
Features | |||
|---|---|---|---|
Coated | Yes | Materials Fastened | Wood to wood |
Collated | No | Multi-Material | No |
Drive | Star | Self-Drilling | Yes |
Fastener Plating | Zinc | Self-Tapping | Yes |
Certifications | |||
|---|---|---|---|
ACQ Approved | Yes | CA Residents: Prop 65 Warning(s) | No |
ACQ Coated | No | ||
Warranty | |||
|---|---|---|---|
Warranty | Limited lifetime | ||
Compatibility | |||
|---|---|---|---|
For Use on Plastic | Yes | For Use on Concrete | No |
For Use on Composite | Yes | For Use on Drywall | No |
For Use on Metal | Yes | For Use on Brick | No |
For Use on Wood | Yes | For Use on Vinyl | No |
Miscellaneous | |||
|---|---|---|---|
UNSPSC | 31161500 | ||
Check out the Best Selling Wood Screws on Lowes.com
Review
1287 Reviews
97% Recommend this product
Ratings may include incentivized customer reviews.
+ 26 images
What Customers Are Saying
The product is praised for its excellent quality, performance, and ease of use. Key features highlighted include the self-drilling and self-countersinking capabilities, as well as the included driver bit that provides a secure fit. Customers appreciate the product's ability to grip and hold wood firmly without stripping or splitting, making it suitable for a variety of projects. While a few had issues with the product bending or breaking, the majority of customers are highly satisfied and consider it the best on the market, despite the higher price.
Customer review summary generated by AI, including incentivized reviews.1287 Customer Reviews
GRK Only
GRK is the only screw brand I used these days for any projects, indoor or outdoor depending on which one you buy. Easy to install, but also easy to remove with vs a Phillips which can strip the screw head. These screws hold up nicely, used them for the construction of framing for a shed for extra support, and on the T11 to 2x4 connection for a strong hold.
Condog478November 2, 2025
From R4 #10 x 3-1_SLASH_8-in Polymer Exterior Wood screws ( 210 -Per Box ) Verified Purchaser
From R4 #10 x 3-1_SLASH_8-in Polymer Exterior Wood screws ( 210 -Per Box ) Verified Purchaser
Was this Review Helpful ?
GRK Only
I have only bought and used GRK screws for projects of any size, with multiple DIY projects. They are great screws and easy to use with the screw tip, compared to a traditional Phillips head. I used it on a shed door build to hold some 2x4s into T11 and trim, strong hold.
Condog478November 2, 2025
From R4 #9 x 2-1_SLASH_2-in Polymer Exterior Wood screws ( 100 -Per Box ) Verified Purchaser
From R4 #9 x 2-1_SLASH_2-in Polymer Exterior Wood screws ( 100 -Per Box ) Verified Purchaser
Was this Review Helpful ?
Response from ITW Brands
Hi there, thanks for sharing your positive experience with our R4 Screws. We work hard to make sure our products are well designed. We’d love to have...
ITW BrandsNovember 3, 2025
Not threaded entire length.
Great product. An improvement would be threaded entire length so they would be easier to remove from wood.
GMANNovember 1, 2025
From R4 #9 x 2-1_SLASH_2-in Polymer Exterior Wood screws ( 100 -Per Box ) Verified Purchaser
From R4 #9 x 2-1_SLASH_2-in Polymer Exterior Wood screws ( 100 -Per Box ) Verified Purchaser
Was this Review Helpful ?
Response from ITW Brands
Hi there, thanks for sharing your positive experience with our R4 Screws. We work hard to make sure our products are well designed. We’d love to have...
ITW BrandsNovember 3, 2025
They are there to stay
Perfect for secures larger boards and I even used them to secure a tree swing
JJSpartaOctober 21, 2025
From R4 #12 x 5-5_SLASH_8-in Polymer Exterior Wood screws ( 50 -Per Box ) Verified Purchaser
From R4 #12 x 5-5_SLASH_8-in Polymer Exterior Wood screws ( 50 -Per Box ) Verified Purchaser
Was this Review Helpful ?
Response from ITW Brands
Hi there, thanks for sharing your positive experience with our R4 Screws. We work hard to make sure our products are well designed. We’d love to have...
ITW BrandsOctober 22, 2025
50 Questions
50 Questions
DIYDeck on June 29, 2024
1
Answer
Diva on February 1, 2024
1
Answer
Emily on June 14, 2023
1
Answer
Pw1447 on August 10, 2022
1
Answer
Cycliste on March 30, 2022
1
Answer
Customer on July 20, 2021
1
Answer
DonS on June 6, 2021
1
Answer
Luis on April 29, 2021
1
Answer
Anonymous on February 5, 2021
1
Answer
Anonymous on August 29, 2020
1
Answer
Hi there, thanks for sharing your positive experience with our R4 Screws. We work hard to make sure our products are well designed. We’d love to have...