GRK R4 #9 x 3-1/8-in Polymer Exterior Multi-material screws 240 -Per Box
Item #580243 |
Model #100105.0
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 | Number of Pieces | 240 |
Series Name | R4 | Head Type | Countersinking |
Sub-Brand | N/A | Measure Type | Standard (SAE) |
Type | Multi-material screws | Thread Type | Coarse |
Material | Steel | Contact Type Allowed | None |
Package Quantity | 240 | Point Type | Self-drilling |
Dimensions | |||
|---|---|---|---|
Length Measurement | 3-1/8-in | Screw Thickness | #9 |
Package Weight (lbs.) | 3.12 | ||
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
Ratings may include incentivized customer reviews.
What Customers Are Saying
Customers overwhelmingly praise these screws for exceptional driving performance, with the T25 star head design driving smoothly and never stripping even under high torque. Most require no pre-drilling and deliver strong, lasting holds with superior countersinking ability for flush installation. Reviewers consistently call them the best fasteners they've ever used, citing unmatched build quality and reliability across woodworking, decking, and construction projects. While some note the premium price, the vast majority agree the cost is fully justified by frustration-free performance and time savings. Overall, customers consider these the gold standard choice.
Customer review summary generated by AI, including incentivized reviews.Perfect size
Great and attaching subfloors to joists.
From R4 #9 x 2-in Polymer Exterior Multi-material screws 110 -Per Box Verified Purchaser
Used to repair a fence
Good screws
From R4 #9 x 2-in Polymer Exterior Multi-material screws 110 -Per Box Verified Purchaser
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...
Great quality screws!
I liked everything about these screws! They are an amazing quality and the savings on the price can’t be beat. I used them to renovate my staircase and couldn’t have been more pleased!
From R4 #9 x 3-1_SLASH_8-in Polymer Exterior Multi-material screws 80 -Per Box Verified Purchaser
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...
GRK Screws Are Awesome!
My go-to framing and structure screws now!
From R4 #9 x 3-1_SLASH_8-in Polymer Exterior Multi-material screws 80 -Per Box Verified Purchaser
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...
Start easy, Hold tight!
GRK screws are hands down the best screws I have used.
From R4 #9 x 2-in Polymer Exterior Multi-material screws 330 -Per Box Verified Purchaser
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...
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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...