#10 x 2-1/2 in. Star Drive Bugle Head R4 Multi-Purpose Wood Screw (80-Pack)
$1440
- Faster Drive for Improved Productivity
- Fast Bite Tip provides a fast start for one-step installation
- For interior / exterior use
- View More Details
How to Get It
Frequently Bought Together
Price:
$1440
Product Overview
GRKs R4 Self Countersinking screw has 6 self-contained cutting pockets which act like a router and transport the drill dust away from the edge of the screw hole. They also widen the countersink hole only around the head shape. The screw head top closes the hole exactly, leaving no damaged fibers around the wider area of the head.
- For use in wood, particle-board, cement fiberboard, plastic, sheet metal
- Self-tapping
- No pre-drilling
- No stripped heads
- Common project applications: remodeling, fencing, storage, cabinets, framing
Additional Resources
From the Manufacturer
Compare Similar Wood Screws
 | |  |  | |
| Brand | GRK Fasteners | GRK Fasteners | GRK Fasteners | GRK Fasteners |
| Name | #8 x 1-1/2 in. R4 Multi-Purpose Star Drive Flat Head Screw (110 per Pack) | #10 x 2-1/2 in. Star Drive Bugle Head R4 Multi-Purpose Wood Screw (80-Pack) | #10 x 3-1/8 in. Star Drive Bugle Head R4 Multi-Purpose Wood Screw (70-Pack) | #9 x 2-1/2 in. Star Drive Bugle Head R4 Multi-Purpose Screw (100-per Pack) |
| Price | $1251 | $1488 | $1488 | $1488 |
| Ratings | (218) | (851) | (851) | (1010) |
| Screw Length | 1-1/2 in | 2-1/2 in | 3-1/8 in | 2-1/2 in |
| Size | #8 | #10 | #10 | #9 |
| Drive Style | Star | Star | Star | Star |
| Head Style | Flat Undercut | Bugle Head | Bugle Head | Bugle Head |
| Fastener/Connector Material | Steel | Steel | Steel | Steel |
| Interior/Exterior | Exterior,Interior | Exterior,Interior | Exterior,Interior | Exterior,Interior |
| Product Weight (lb.) | .006 lb | 0.013 lb | 0.0165 lb | 0.01 lb |
| Features | ACQ Rated,Coated,Self Drilling,Self Tapping | ACQ Rated,Coated,Self Drilling,Self Tapping | ACQ Rated,Coated,Self Drilling,Self Tapping | ACQ Rated,Coated,Self Drilling,Self Tapping |
| View Product | View Product | View Product | View Product |
Specifications
Dimensions
Screw Length
2-1/2 in
Thread Pitch (mm)
2.6 mm
Threads Per Inch (TPI)
9.8
Details
Color Family
Yellow
Drive Style
Star
Fastener Plating
Polymer
Fastener Type
Wood Screw
Fastener/Connector Material
Steel
Features
ACQ Rated,Coated,Self Drilling,Self Tapping
Finish
Climatek coating
Finish Family
Yellow
Head Style
Bugle Head
Included
Driver Bit
Interior/Exterior
Exterior,Interior
Materials Fastened
Wood to Wood
Measurement Standard
SAE
Package Quantity
80
Product Weight (lb.)
0.013 lb
Returnable
90-Day
Size
#10
Warranty / Certifications
Manufacturer Warranty
No
Questions & Answers
Typical questions asked about products:
- Is the product durable?
- Is the product easy to use?
- What are the dimensions of the product?
Customer Reviews
Feb 8, 2022
Excellent, used to attach furring strips
We used these to go through the furring strips and then the exterior insulation and the OSB and then into a stud. they have great grab and are strong.
by
Jun 17, 2021
I started using the screws and noticed I was running low rather quickly. So I decided to count th...
I started using the screws and noticed I was running low rather quickly. So I decided to count them and noticed I was shorted at least 12 screws. While that may seem petty, it actually adds up to over 2$ stolen from me since these are not cheap screws. I am not sure if they were stolen by a customer (i.e., took some screws out of one pack and add them to their own before purchasing) or if GRK is intentionally shorting customers and hoping they don't notice. Either way, the package needs a safety seal to prevent this; something as simple as a sticker would suffice! I will not buy this brand again until there is theft protection because who has time to count 80 screws in the store??? Other than this issue, the screws function very well and have not split any wood!
by
Response from PaslodeJun 24, 2021
Hi there, thank you for sharing your feedback. We are sorry to hear that your experience with our product was unsatisfactory due to the missing screws. We appreciate your feedback with the packaging and will pass it along to our team. Please call us at (877) 489-2726 or email us at CS@itwbrands.com. We’d like to learn more about your experience and make things right.
Apr 9, 2021
Great fasteners. I used them to secure 2” x 12” boards to 4” x 4” blocks for shelving. They go in...
Great fasteners. I used them to secure 2” x 12” boards to 4” x 4” blocks for shelving. They go in smooth and are very strong. No complaints and will buy this brand again.
by
Dec 12, 2020
Screw was easy to hold and drive. No quality issues to prevent them from stripping or driving int...
Screw was easy to hold and drive. No quality issues to prevent them from stripping or driving into wood. I used them for mostly indoor projects. They were used to my Ryobi tool rack for example. It holds up nicely.
by
Jul 15, 2020
I used these screws to hold the 2x4's that i secured to the wall in order to mount a heavy TV to ...
I used these screws to hold the 2x4's that i secured to the wall in order to mount a heavy TV to the wall. Used 8 screws on each 2x4 and i was able to pull myself from the 2x4, 220 lbs.! Screws were very easy to drive in and the provided bit did a great job, no wobble when driving the screw, so it when in very straight.
by
Jul 12, 2020
Rusted and Broken
Installed these on my new deck (3) years ago...went to reset some of them and they started snapping off with the impact driver...I’m now having to slowly back them out with a drill and about 1/3 are broken...replacing with deckmate coated screws.,,
by
Jul 7, 2020
Easy to drive. Had zero issues with these screws. Used to construct somesome built inin shelves i...
Easy to drive. Had zero issues with these screws. Used to construct somesome built inin shelves inin thethe kids playroom. Went in easily and held securely.
by
Jun 25, 2020
Recently I purchased two packages of GRK Fasteners being review. I used 140 of these wood screws...
Recently I purchased two packages of GRK Fasteners being review. I used 140 of these wood screws for repairing a 20 year old treated wood deck that the old nails rotted and some of the boards came loose. This product came with the green star drive bugle head in each package, which I only used one of this bits. The package states that the screws are for treated wood. I did not have to pre-drill any of the holes due to the "fast bite tips." Whereas with another brand occasionally I did have to per-drill holes after the screw head would not go deep enough during this repair project - these screws that I had to pre-drill did not have the fast bite design. Yes, I'm pleased with the GRK screws used in this project.
by
Apr 15, 2020
I purchased many different grk screws and structural screws to build a 250 sq ft 3 season room th...
I purchased many different grk screws and structural screws to build a 250 sq ft 3 season room that i literally completely screwed it together. These are the best for any project. I especially like that they prevent the end of the board from splitting when installing a screw next to the end of the board as well as a great selection of screws for almost any application. And their Structural screws are 3 to 4 times stronger than a comparable lag or carriage bolt.
by
Apr 7, 2020
Great hold power and bite. I use these screws mostly all the time for framing . Much easier then ...
Great hold power and bite. I use these screws mostly all the time for framing . Much easier then pounding nails.built a remote tiny house using these srews
by
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