Model # 100101

Internet #203533402

Store SKU #489745

0628611001010

GRK Fasteners

#9 x 2-1/2 in. Star Drive Bugle Head R4 Multi-Purpose Wood Screw (300-Pack)

  • 20% faster drive time
  • Zero stripping
  • No splitting
$ 25 98
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Frequently Bought Together

Frequently Bought Together

Product Overview

  • 20% faster drive time
  • Zero stripping
  • No splitting
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

Product Overview

  • 20% faster drive time
  • Zero stripping
  • No splitting
Model #: 100101
Sku #: 489745
Internet #: 203533402

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

Info & Guides

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Brand GRK Fasteners GRK Fasteners GRK Fasteners GRK Fasteners
Name #8 x 2-1/2 in. Low Profile Washer-Head Cabinet Screw (100 per Pack) #9 x 2-1/2 in. Star Drive Bugle Head R4 Multi-Purpose Wood Screw (300-Pack) #9 x 2 in. Star Drive Bugle Head R4 Multi-Purpose Wood Screw (330-Pack) #10 x 3-1/8 in. Star Drive Bugle Head R4 Multi-Purpose Wood Screw (210-Pack)
Price
$11.27 /package
$25.98
$26.38
$29.98
Ratings (85) (108) (23) (48)
Size #8 #9 #9 #10
Screw Length 2-1/2 in 2-1/2 in 2 in 3-1/8 in
View Product View Product View Product View Product

Specifications

Dimensions

Screw Length
2-1/2 in
Thread Pitch
0

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 coated
Head Style
Flat Undercut
Included
Driver Bit
Interior/Exterior
Exterior,Interior
Measurement Standard
SAE
Package Quantity
300
Product Weight (lb.)
0.01lb
Returnable
90-Day
Size
#9

Warranty / Certifications

Manufacturer Warranty
No

Specifications

Dimensions

Screw Length
2-1/2 in
Thread Pitch
0

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 coated
Head Style
Flat Undercut
Included
Driver Bit
Interior/Exterior
Exterior,Interior
Measurement Standard
SAE
Package Quantity
300
Product Weight (lb.)
0.01lb
Returnable
90-Day
Size
#9

Warranty / Certifications

Manufacturer Warranty
No

Questions & Answers

How well to they stand up to corrosion? Do they have a corrosion warranty?

How well to they stand up to corrosion? Do they have a corrosion warranty?
Asked by: neilfcars
Absolutely. I use them for outdoor furniture, decks and fences. They never stain the wood like some types of screws.
Answered by: bob66
Date published: 2018-05-22

Can these screws be used in framing as in sheds and small portable type cabins? I used them on a ...

Can these screws be used in framing as in sheds and small portable type cabins? I used them on a pen i'm building for goats and I am sold on these the only thing that I experienced was minor chipping on the surface of the wood. I love these screws just making sure I can use them in framing before I plan out my new project. Thanks.
Asked by: Poetrkc
Yes I have used them in that situation works well no problems so far
Answered by: Springerman
Date published: 2018-04-24

could you used it for treated wood

Asked by: jojo
Yes, the are approved for pressure treated lumber
Answered by: Brewer01
Date published: 2018-03-01

What's the size of the Torx bit?

Just in case I want to have an extra on hand on the job site.
Asked by: BobC46
T-25
Answered by: TubeJim101
Date published: 2017-11-03
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Customer Reviews

#9 x 2-1/2 in. Star Drive Bugle Head R4 Multi-Purpose Wood Screw (300-Pack) is rated 4.9 out of 5 by 108.
Rated 5 out of 5 by from Buy these screws. No seriously BUY THEM! These came reccomended to me by a local contractor/carpenter. He said they are the best screws he's ever used and now he refuses to buy anything else. Ever slipped off a long screw going into a 2x4? Won't happen with these. Ever had to keep turning up the clutch on your driver drill to get them installed? Try your 50% setting with these and it's probably good enough. I'm telling you he was right. These screws are nothing short of amazing to use! It's like screwing into foam rubber or something, you literally will be blown away how easy these go in. They have a self drilling type tip and smooth flights. Incredible product. Period. Now I won't be buying anything else. You can kiss your headaches with fasteners goodbye after you use these, yes they cost a few pennies more per screw but trust me it is totally worth it! Don't over look the importance on your project of using top notch fasteners, it will literally save you time and energy. Tom S. (Engineer) Itasca IL
Date published: 2014-05-13
Rated 5 out of 5 by from These are premium quality screws! Made in Canada from an original Swiss design, they are easy to ... These are premium quality screws! Made in Canada from an original Swiss design, they are easy to start, strong, and most importantly, the T-25 star drive heads don't strip out easily. They drive easily with a cordless drill or screwdriver. They are much stronger than the cheaper Chinese / Asian made screws that strip out or break. They are well worth the expense above the cheaper alternative also sold by Home Depot. If it is an important project or one that you don't want to redo, spend the money on these!
Date published: 2019-04-10
Rated 5 out of 5 by from The GRK's are the best fasteners I have ever worked... The GRK's are the best fasteners I have ever worked with. Their self drill tip does a great job and they grab onto material like a beast. I still pre-drill in spot where splitting is more likely such as at the end of a board, and they still work great there too. I'd highly recommend these screws.
Date published: 2019-05-10
Rated 5 out of 5 by from Call me lazy, but I use these self-tapping screws all... Call me lazy, but I use these self-tapping screws all the time. Any extra cost is worth not having to pre-drill. They fit in nicely and look great!!
Date published: 2019-03-06
Rated 5 out of 5 by from The screws worked great. I only wish the apex was... The screws worked great. I only wish the apex was able to go a little deeper into the screw head to ensure less chance of slip.
Date published: 2019-04-30
Rated 5 out of 5 by from Used this to build a new stand for an aquarium in my living room. Has everything locked in place ... Used this to build a new stand for an aquarium in my living room. Has everything locked in place very well. Very solid.
Date published: 2019-03-12
Rated 5 out of 5 by from I had no problems with wood splitting, and I always... I had no problems with wood splitting, and I always prefer the Torx head screws over Phillips or Robertson head screws.
Date published: 2019-03-12
Rated 3 out of 5 by from Good product.would like to see a wider head on them. But other then that good screws. Good product.would like to see a wider head on them. But other then that good screws.
Date published: 2019-04-16
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