Internet #203525228

Model #103101

Store SKU #723205

#9 x 2-1/2 in. Star Drive Bugle Head R4 Multi-Purpose Screw (100-per Pack)

  • Faster Drive for Improved Productivity
  • Fast Bite Tip provides a fast start for one-step installation
  • For interior / exterior use
  • See More Details

Frequently Bought Together

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Price:
$1020

Product Overview

GRK’s 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
  • Note: product may vary by store

Info & Guides

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Compare Similar Wood Screws

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#9 x 2-1/2 in. Star Drive Bugle Head R4 Multi-Purpose Screw (100-per Pack)
#10 x 4 in. R4 Self-Countersinking Flat-Head Multi-Purpose Screw (50 per Pack)R4 #10 x 2-1/2 in. 305 Stainless Steel Star Drive Bugle Head Multi-Purpose Wood Screw (80-Pack)
BrandGRK FastenersGRK FastenersGRK Fasteners
Name#9 x 2-1/2 in. Star Drive Bugle Head R4 Multi-Purpose Screw (100-per Pack)#10 x 4 in. R4 Self-Countersinking Flat-Head Multi-Purpose Screw (50 per Pack)R4 #10 x 2-1/2 in. 305 Stainless Steel Star Drive Bugle Head Multi-Purpose Wood Screw (80-Pack)
Price
$1020
/package
$1458
/package
$2262
Ratings
(180)
(129)
(0)
Screw Length2-1/2 in4 in2-1/2 in
Size#9#10#10
Drive StyleStarStarStar
Head StyleBugle HeadBugle HeadBugle Head
Fastener/Connector MaterialSteelSteelSteel
Interior/ExteriorExterior,InteriorExterior,InteriorExterior,Interior
View ProductView ProductView 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 coating
Head Style
Bugle Head
Included
Driver Bit
Interior/Exterior
Exterior,Interior
Measurement Standard
SAE
Package Quantity
100
Product Weight (lb.)
0.01
Returnable
180-Day
Size
#9

Warranty / Certifications

Manufacturer Warranty
No

Questions & Answers

9Questions22Answers

What's the size of the Torx bit?

Asked by BobC46 June 10, 2016
5
Answers

Not sure, but they include a quality torx bit in the package.

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

Asked by Poetrkc February 7, 2017
5
Answers

Yes, but I would choose to use a screw that has a head that will NOT chew it's way down through the wood. Screws without that chewing feature will tend to pull two pieces of wood more tightly together. The GRK fasteners seem to result in loosely-attached joins.

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

Asked by neilfcars February 10, 2018
3
Answers

Absolutely. I use them for outdoor furniture, decks and fences. They never stain the wood like some types of screws.

Can these be used on stucco for ledger panels

Asked by MV May 2, 2020
2
Answers

No, these are wood screws.

Are #9 screws ideal size for 2x4? I am new to DIY projects and wood working in general

Asked by HomeDepotCustomer January 16, 2020
2
Answers

Yes they work great, but ideal depends on your project. Remember screws are not designed for framing, they are a harder metal than nails and are somewhat brittle and can break easily, they will not flex as a nail would. But as a general fastener they do work very well, they start very easy and have a very good grip. I have used them to pull a twisted or warped 2×4 straight followed with a couple 3 1/2 framing nails.

Isn't this a #9 x 2-1/2" Screw?

Asked by TechmoTim October 14, 2015
2
Answers

I thought they were #8 but if the box says #9 then thats what they are.

Can this screw be used for plywood sheathing for exterior walls?

Asked by ruminir November 21, 2018
2
Answers

It can be used for any wood to wood fastening task, but I would suggest a somewhat shorter length unless there is some factor I am unaware of in your situation.

Can these be used for pocket holes?

Asked by JCL June 30, 2020
1
Answer

I wouldn't use them for that. The heads are designed to chew through the wood. You want a pocket-hole wood screw with a flat head that will bull the two wood pieces tightly together without damaging the wood. You should buy pocket-hold screws instead.

Do they make fasteners that cannot be removed once installed

Asked by TJ June 14, 2020
0
Answers

Customer Reviews

  • 180 Customer Reviews
  • 5 out of 5 stars overall
100% of customers recommended.
Overall Ratings
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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.
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I really like these screws and consider them to be well worth the extra money. The star drive tip...
I really like these screws and consider them to be well worth the extra money. The star drive tip never slips or comes out of the screw while it is being driven, nor does the screw head ever become damaged or stripped. This is a wonderful thing after a lifetime of struggling with phillips head screws. Note that you do not have to press down with all your might to keep the tip engaged as you often do with phillips head screws; you just hold the drill and let the screw do most of the work.
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Screws worked well, no splitting of wood.
Screws worked well, no splitting of wood.
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The fasteners hold quite well. The t-15 heads don't strip...
The fasteners hold quite well. The t-15 heads don't strip out like phillips heads do
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Rating provided by a verified purchaser...
Rating provided by a verified purchaser
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Rating provided by a verified purchaser...
Rating provided by a verified purchaser
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Worked great. Much better than Phillips or standard head screws....
Worked great. Much better than Phillips or standard head screws. Drive very fast
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Great product...no more slipping off the head or stripping....
Great product...no more slipping off the head or stripping.
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