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#9 x 3 in. Star Flat-Head Wood Deck Screws (5 lbs./Pack)

Frequently Bought Together


Product Overview

Make the most of your of your outdoor project with DECKMATE brand exterior screws. Designed for use with all treated lumber and all exterior projects to connect wood to wood. A lifetime polymer coating provides extra corrosion resistance that is guaranteed for the life of your outdoor project.
  • Star drive head helps transfer torque and prevent cam outs
  • Nibs under head allow screw to countersink better for a smoother finish
  • Type 17 point with flute creates its own pilot hole limiting the need for pre-drilling
  • Includes T-25 driver bit in the box
  • California residents

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Name#10 x 3-1/2 in. Star Flat-Head Wood Deck Screws (5 lbs./Pack)#9 x 3 in. Star Flat-Head Wood Deck Screw (5 lbs.-Pack)#9 x 3 in. Star Flat-Head Wood Deck Screws (5 lbs./Pack)#9 x 2-1/2 in. Star Flat-Head Wood Deck Screw (5 lbs./Pack)
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Screw Length
3 in
Thread Pitch


Color Family
Drive Style
Fastener Plating
Fastener Type
Wood Deck Screw
Fastener/Connector Material
ACQ Rated,Coated
Finish Family
Head Style
Flat Head
Driver Bit
Measurement Standard
Package Quantity
Product Weight (lb.)

Warranty / Certifications

Manufacturer Warranty

Questions & Answers


Is the costing for these screws toxic? I have a lot left over and wanted to use them to build in...

Asked by Rob March 25, 2021

Assuming you mean coating. I use the all around the inside and outside of the house

Are these approved for use with PT ground contact lumber (0.4 #/cf copper A) in wet conditions? ...

Asked by bug99 March 22, 2021


where are the screws made

Asked by Johnny February 11, 2021

these are imported from Taiwan

What is the “lifetime warranty” on these? How do you file a claim?

Asked by Tommy January 4, 2021


Do these screws meet ASTM A153 standards? I used galvanized joist hangers on my pressure treated ...

Asked by Larry December 10, 2020

Every other screw head is stripping when I try to remove them? How do I prevent that?

Asked by Yugeen October 7, 2020

Make sure key stay in the screw head Johnny

how many screws are in a 5# box

Asked by jack September 24, 2020

About 350.

How many screw 3'' deck screws in a pound

Asked by Bill September 15, 2020

there are approximately 618 screws in a 10lb bucket

Approximately, How many per box?

Asked by Hector August 14, 2020

A 1 lb. Box has one pound of screws. If the screw weight is less then there are more screws.

how many per sq ft

Asked by bg July 13, 2020

This depends on whether you are using 12" or 16" support joists. For 12" joist supports - approximately 900 sq ft. , for 16" joist supports - approximately 700 sq ft.

#9 x 3 in. Star Flat-Head Wood Deck Screws (5 lbs./Pack) - page 2

Customer Reviews

  • 4.7
    out of 2,706 reviews
  • 88% recommend this product
Filter by:
Showing 1-10 of 2,706 reviews
Absolute junk!
I built a 10x20 deck last fall. Laid it out with HD deck designer and picked up everything at my local store. These "NEW and improved" design deck mate screws are the worst fastener I've ever used. I had no problem with them tightening down like other people have claimed. My issue showed up 4 months later. After the snow melted I inspected the deck and found a few screw heads sticking up. Well to my surprise when I went to tighten them down I found all of them had broke!!! Now I'm in the process of replacing all the deckmate screws with GRK. So far 50% of them are broken. Stay far away from these screws!! Im going to contact my local HD and demand my Money back
by Notyourmom
Improved version is worthless
“Improved” version absolutely sucks. It’s horrible, does not pull the two pieces of wood together. The screw just keeps spinning. Bring back the old version, which was perfect!!! If you want to pre-drill every hole, buy it, otherwise look at other brands. I am so disappointed as I bought a lot of them and I used to rave about this screw using it for everything outdoors and indoors. Picture shows “improved” version on left, with different thread pattern that does not create a tight connection anymore
by Kims
1 person found this helpful
The only Deck Screws I use. Love them....
The only Deck Screws I use. Love them....
by RedOak
Works great...
Works great
by HomeDepotCustomer
Bad batch??
Just as Jeromie stated, screws are breaking. 35'x25' ft deck built in Feb 2020, it's now September. 1/2 the deck boards are popping up. After inspection it turns out the screws had snapped and are no longer holding the boards down. I did not count all the screws but at least 50 of them are broken. Also the starhead strips out very fast. These screws are great screws and not sure if I got a bad batch. Using these screws in the past on other decks I've built I've never had these problems.
by Raymond
They break after 1 year
Built 3 level 1800 sqft deck in Oct of last year. Was going to clean and stain this week but instead im dealing with broken screws. Up to 50+ replaced so far and still have largest deck to go. These screws are junk. I just finished chemo in August and now i have to deal with this. Decimate is manufactured by homedepot if you guys didn't know.
by Jeromie
6 people found this helpful
These deck screws worked well for replacing boards on my deck that were held in with nails
These deck screws worked well for replacing boards on my deck that were held in with nails
Rating provided by a verified purchaser...
Rating provided by a verified purchaser
by Handyman
Well satisfied please with the screws
Well satisfied please with the screws
Screws are breaking after less than two months
Over the course of the two months, I've purchased four separate boxes of Deckmate star drive coated screws to use in securing deckboards while remodeling my back deck: (2) 1 lb boxes of 2 1/2" (item #: 1003 274 848) (1) 5 lb box of 2 1/2" (1003 274 835) (1) 1 lb box of 3 1/2" (1003 274 833) I've since stained my deck and thought I was finished with the project when I began to notice some of the screws slightly "popping" loose. While attempting to re-secure them with a drill, I determined that several of the screws had essentially begun to break. So far I've discovered at least ten of them (photo of several below, along with an "unbroken" one for reference) that have broken, all in a similar spot on the screw. I really liked these screws when installing and their promise of "lifetime warranty" but am now greatly concerned over what the future holds regarding their durability.
by Pnflkc3
13 people found this helpful
Showing 1-10 of 2,706 reviews