GRK R4 #9 x 2-1/2-in Polymer Exterior Multi-material screws 100 -Per Box
Item #580238 |
Model #103101.0
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 | 100 |
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 | 100 | Point Type | Self-drilling |
Dimensions | |||
|---|---|---|---|
Length Measurement | 2-1/2-in | Screw Thickness | #9 |
Package Weight (lbs.) | 1 | ||
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 drive design preventing bit slippage and stripping. Most highlight how they drive in easily without pre-drilling, deliver secure grip, and hold firmly in hard woods without bending. Reviewers consistently call them the best fasteners they've used, citing superior build quality, dual-thread design, and countersinking capability as key advantages for woodworking and construction projects. While some acknowledge the higher price point, nearly all agree the cost is justified by performance gains, time saved, and improved project outcomes. Overall, customers view these as a premium investment and enthusiastically recommend them.
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...
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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...