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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
- No pre-drilling required in most applications
- Use with a standard driver or impact driver
- Drive the screw until the head is flush with the wood surface
- 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:
- 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
4.8 ★★★★★
Based on 14 reviews
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Product Reviews
★★★★★ 5
Easy use and easy charge.
Color: 2-Speed Rechargeable Set with Charging Base
This is so easy to use and easy to charge. The set has made life so much easier.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
★★★★★ 5
Great product
Color: 2-Speed Rechargeable Set with Charging Base
Great product
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 1, 2026
★★★★★ 1
Good looker but terrible performance
Color: 2-Speed Rechargeable Set with Charging Base
I purchased the product and the base would not attach from the charging module. This is their big selling point. I requested a replacement and sadly the replacement was of the same batch run as the original soo…. Yeah that base would not detach. There are videos showing how easy it is to detach base from charging module. Not theses units. Circle Joy customer service is an @gmail.com. They said base is not designed to be removed frequently. I reminded them the separation feature is their highlighted feature. I was just looking for a base. Circle Joy said no…. If I do not like either unit just return them to Amazon.???? In the meantime, after maybe a dozen grinds, the original unit quit grinding normally and would barely grind at all. I shook it out and it worked again but doesn’t sound right. Two takeaways: 1) Poor product quality. 2) I am sooo done with trying to work with Amazon on replacement items. Save yourself a tone of aggravation and just return the order and reorder if you dare. Otherwise good looking and heavy feel and works great about 10 times. Too bad so sad. Now I have this huge return hassle with Amazon.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 6, 2026
★★★★★ 5
Great shakers with convenient dock
Color: Silver, Size: Rechargeable
These are very nice. Work very well. My only complaint is right where I pick them up is the button to turn them in so I’m always accidentally salting the counters lol. Easy to refill. We like the lights. I love that they have a charging dock so they are always fully charged. Very happy with them.
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Reviewed in the United States on March 5, 2026
★★★★★ 5
You don’t have to shake it. I love it
Color: Silver, Size: Rechargeable
Different settings from fine to course. It has a light around the bottom where you can see how much you’re using. It stays charged for a while. The quality is great. Well made.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 14, 2026
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