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1/4 in. x 1-1/2 in. Strong-Drive SDS Heavy-Duty Connector Screw (25-Pack)

  • Solid steel construction offers long-lasting usage
  • Double-barrier coating provides high corrosion resistance
  • Serrated threads offer better penetration and easy drilling
  • See More Details

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Product Overview

Deck Glamour Photo

Deck It Out

Strong decks bring beauty and entertaining space to your outdoor living area

Deck Glamour Photo

Make Your Deck Beautiful and Safe

Building a safe, strong deck starts with the proper connectors and fasteners

Photo of a deck being built

Deck Building Tips and Tricks

Installing corrosion-resistant connectors and fasteners helps extend the life of your deck

SDWH Screw being installed into ledger

Ledger connections critical for deck safety

Strong-Drive® SDWH Timber-Hex HDG screw delivers high-strength, wood-to-wood connectivity, such as deck ledger applications

DTT2Z guardrail install

Guardrail Installation Tips and Tricks

Don’t take chances with guardrail connections. DTT2Z deck tension ties fasten guardrails to deck framing.

DTT1Z install

Securing the Deck to the House

Install DTT1Z as a tension tie to meet building codes and eliminate the need to access to the floor joists inside the home

LSCZ install

Take the Step to Secure Deck Stairs

LSCZ adjustable stair-stringer connector offers a concealed connection between the stair stringer and the carrying header or rim board

Tight LUS26Z install shot

Joist Hangers

Provides bearing and uplift resistance

Tight H1 install shot

Hurricane Ties

Ideal for preventing lateral movement of joists

Tight SD screw install photo

SD Connector Screw

The only screw approved with Simpson Strong-Tie connectors

Tight install shot of LCEZ4

Post Caps

LCEZ end post caps provide a post-to-beam connection in new or retrofit deck applications

Tight PBSZ install photo

Post Base

Features a 1 in. standoff to resist wood decay

Stainless-steel connector product shot

Prevent Corrosion

Deck-Drive DWP stainless-steel fasteners are recommended for higher-exposure environments or applications

The Simpson Strong-Tie Strong-Drive SDS Heavy-Duty Connector screw is a 1/4 in. Dia high-strength structural screw ideal for various connector installations as well as wood-to-wood and engineered wood applications. It installs with no predrilling and has been extensively tested in various applications. The SDS is improved with a patented easy-driving Type-17 point and a corrosion-resistant double-barrier coating.
  • Crystal-clear polycarbonate panels provide over 90% light transmission yet blocks harmful UV rays
  • 3/8 in. hex head with 0.48 in. integrated washer
  • Head is stamped with the Simpson Strong-Tie sign and fastener length for easy identification after installation
  • Serrated threads
  • Replacement driver bit BITHEXR38-134 (not included)
  • Length: 1-1/2 in.
  • Corrosion-resistant double-barrier coating
  • Quantity: 25
  • Low-speed 1/2 in. drill with a 3/8 in. hex driver is the recommended tool for installation
  • Common project applications: remodeling, fencing, storage, cabinets, framing
  • Shop all Simpson Strong-Tie here.

Info & Guides

You will need Adobe® Acrobat® Reader to view PDF documents. Download a free copy from the Adobe Web site.

Specifications

Dimensions

Screw Length
1-1/2 in
Thread Pitch
0.00

Details

Color Family
Steel
Drive Style
External Hex
Fastener Plating
Other
Fastener Type
Wood Screw
Fastener/Connector Material
Steel
Features
ACQ Rated,Coated
Finish
Double-Barrier Coating
Finish Family
Other
Head Style
Hex
Included
No Additional Items Included
Interior/Exterior
Exterior,Interior
Materials Fastened
Wood to Wood
Measurement Standard
SAE
Package Quantity
25
Product Weight (lb.)
0.57
Returnable
90-Day
Size
1/4 in

Warranty / Certifications

Manufacturer Warranty
Limited Warranty

Questions & Answers

15Questions17Answers

Can these be used with a shim or other small piece of wood to secure to 1" thick interior stair t...

Asked by JimBad September 14, 2020
2
Answers

You answered your own question. If you use a shim of appropriate length it would work.

Is this a #9 screw? I am going to use a bracket that calls for #9.

Asked by Nan August 27, 2020
1
Answer

This is not a #9 screw. The #9 screw permitted for use with some Simpson Strong-Tie connectors is the #9 SD Connector screw shown at the following link: https://www.strongtie.com/strongdrive_exteriorwoodscrews/sd_screw/p/strong-drive-sd-connector-screw. Thank you!

Will this fit in a simpson joist hanger that uses #9 screws?

Asked by Kevin September 3, 2019
1
Answer

No, the SD #9 replaces 10d common nails (0.148" diameter); the 1/4" SDS screws would be too large. Thank you!

Can it be used for wood to aluminum application?

Asked by Weasil August 27, 2019
1
Answer

Yes, this can be used for wood to aluminum applications.

Can these be used for deck blocking?

Asked by AlexH August 16, 2019
1
Answer

Unless you have elephants on the deck, this screw would be way over-kill.

I'm attaching a 2x4 to a 3/16 metal post. what is the right screw?

Asked by Dan March 23, 2019
1
Answer

NONE. Get a bracket made for the purpose.

can I use these for attaching ledger board to house (wood siding) for small porch roof project, w...

Asked by BigPRO February 10, 2019
4
Answers

2018 IRC and DCA-6 dictates the use of 1/2" protective coated or rust resistant lag bolts OR through bolts. There is no alternative listed in these code references. However, the local building official can approve (or deny) the use of structural screws for ledger attachment. There are also specific restrictions as to "where" on the ledger any means of attachment can be placed and used. Keep in mind, if the back side of the band joist is not accessible for inspection the deck must be a free standing deck with no attachment to house.

I'm attaching a Galvanized Skewed left Joist Hanger SUL26Z to an 2"x8"x16' pine pressure treated ...

Asked by mm October 14, 2018
3
Answers

You can use 1-1/2” Strong tie screws if attaching to a single thickness 2” x 8” joist. If attaching to a double rim joist (3” thick) use 2-1/2” screws.

are these as strong as Simpson SD#10 (ie. equivalent to 16d nails or stronger)?

Asked by handydad October 4, 2017
2
Answers

Shear strength for the SDS screw is 250, I believe the average shear strength on a 16D nail is 130. It varies a bit if it's sinker or nail gun nail.

What is the Shear strength of the fastener?

Asked by joe March 31, 2017
1
Answer

There are different factors that affect the shear strength, i.e. the type of wood it is being installed in, application, steel side plate or wood side plate, the thickness of the side plate, etc. Please visit our website or C-F-2017 Fastening Systems catalog (pages 329-333) for complete information. Thank you!

1/4 in. x 1-1/2 in. Strong-Drive SDS Heavy-Duty Connector Screw (25-Pack) - page 2

Customer Reviews

  • 4.8
    out of 115 reviews
  • 97% recommend this product
Filter by:
Showing 1-10 of 115 reviews
Easy to start, no splitting. Excellent galvinized finish.
Easy to start, no splitting. Excellent galvinized finish.
by KenM
1 person found this helpful
Rating provided by a verified purchaser...
Rating provided by a verified purchaser
by HomeDepotCustomer
Hex head makes it fast to install. Easier than using nails. Since it's designed for mechanical fa...
Hex head makes it fast to install. Easier than using nails. Since it's designed for mechanical fastening, it gives peace of mind on durability.
by HomeDepotCustomer
by HomeDepotCustomer
It worked as it should.
It worked as it should.
by JACK
Worked great for my fence repair, plus they should last...
Worked great for my fence repair, plus they should last a long time.
by Mister
great screws
Used to attach some casters. I’ve used these screws twice now with good results both times
by sina
Rating provided by a verified purchaser...
Rating provided by a verified purchaser
by HomeDepotCustomer
I used the to attach knee braces to deck. They do the job.
I used the to attach knee braces to deck. They do the job.
by Ron
Great screw! I used it to attach heavy duty shelves to studs in a shed wall. In theory you don't ...
Great screw! I used it to attach heavy duty shelves to studs in a shed wall. In theory you don't need to drill pilot holes, but I did in order to avoid the risk of splitting the studs.
by HomeDepotCustomer
Showing 1-10 of 115 reviews