SKU: 57261516221

Simpson Strong-Tie SWD22812DBB-R30 Strong-Drive (0.235" x 8-1/2") Double-Threaded Screw T40 Black (30 Pack)

Sale price$53.96 Regular price$59.95
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Ships within 48 hours · Estimated delivery Jul 16 - Jul 21

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Description

Simpson Strong-Tie SWD22812DBB-R30 Strong-Drive (0.235" x 8-1/2") Double-Threaded Screw T40 Black (30 Pack)Simpson Strong Tie SWD22812DBB R30 Description The Strong Drive SWD Double Threaded Screw is a high performance structural fastener engineered for exterior wood to wood applications, featuring a corrosion resistant double barrier coating and a low profile head for a clean finish. Simpson Strong Tie SWD22812DBB R30 Includes (30) 0. 235 in. x 8 1 2 in. Double Threaded Wood Screw Simpson Strong Tie SWD22812DBB R30 Features Double threaded design for

Simpson Strong-Tie SWD22812DBB-R30 Description

The Strong-Drive SWD Double-Threaded Screw is a high-performance structural fastener engineered for exterior wood-to-wood applications, featuring a corrosion-resistant double-barrier coating and a low-profile head for a clean finish.

Simpson Strong-Tie SWD22812DBB-R30 Includes

  • (30) 0.235 in. x 8-1/2 in. Double-Threaded Wood Screw

Simpson Strong-Tie SWD22812DBB-R30 Features

  • Double-threaded design for superior withdrawal resistance
  • Unthreaded mid-shank for tight wood connections
  • Black double-barrier coating for corrosion resistance
  • Flush head design for a clean finish
  • Precision engineered for consistent performance

Simpson Strong-Tie SWD22812DBB-R30 Applications

  • Deck ledger attachments to rim joists
  • General exterior wood framing
  • Pergolas, porches, and outdoor structural assemblies
  • Wood-to-wood connections requiring high withdrawal strength

Simpson Strong-Tie SWD22812DBB-R30 Installation Overview

  1. No pre-drilling required in most applications
  2. Use with a standard driver or impact driver
  3. Drive the screw until the head is flush with the wood surface
  4. Compatible with treated lumber following coating guidelines

Simpson Strong-Tie SWD22812DBB-R30 Specifications

Diameter 0.235 in.
Length 8-1/2 in.
Material Carbon Steel
Finish Double-Barrier Coating
Color Black
Drive Type T40 6-Lobe
Head Diameter 0.394 in.
Head Type Cylinder Head
Point Type Screw Chisel Point
Thread Length 3-3/4 in.
Thread Type Double Thread
Shank Style Unthreaded Mid-Shank
Quantity 30
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 57261516221

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4.8 ★★★★★
Based on 29 reviews
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K
Verified Purchase
Kathleen Bauer
Phoenix, US
★★★★★ 5
Excellent results
I have an older truck with badly oxidized headlights. I saw this product advertised and decided to give it a try. It was amazing how easy it was to do. 3 step process and the most remarkable results! I had a question regarding the process, called the number on the QR code and spoke to a person! OhJoy! More than helpful, put a whole new meaning to "service after the sale"I highly recommend this product and this company!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 2, 2025
T
Verified Purchase
Thomas Clauser
Charlottesville, US
★★★★★ 3
Not quite what I expected
Great price but the results, though they did improve the clarity, it was not the full results I HAD EXPECTED.. The foiled packages that had the oxidizer removal and ceramic clear coat were nearly dry when I opened them. They should be made more wet when sealed and possibly better foil paqckaging.
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Reviewed in the United States on March 24, 2026
V
Verified Purchase
victor
Houston, US
★★★★★ 1
Ruined my headlights! Big waste of money!
I decided to try this instead of soda bicarbonate and toothpaste to see if if would be oxidation cleared for longer. Big mistake, it made my headlights completely hazed making it even worst. Don’t waste your money on this or anything else. Soda bicarbonate and toothpaste is better and you can seal it with a lacquer or sealer. Big waste of money. Hopeflly I can fix them…😡
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 5, 2025
J
Verified Purchase
Javier Basurco
Alexandria, US
★★★★★ 5
Resultado
Bueno, facil de usar
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 7, 2026
B
Verified Purchase
Bethany L Kelly
Birmingham, US
★★★★★ 5
Best product for headlight restoration.
This kit comes with everything that you need to restore dull and yellowed headlights to original shine. I have used other products in the past that were not as easy or effective. Customer service was wonderful. Highly recommend.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 20, 2025

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