SKU: 19481025022

Simpson Strong-Drive® SDWS™ TIMBER Screw (Exterior Grade)

Sale price$71.99 Regular price$79.99
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Description

Simpson Strong-Drive® SDWS™ TIMBER Screw (Exterior Grade)The Strong Drive SDWS Timber screw is designed to provide an easy to install, high strength alternative to through bolting and traditional lag screws. This screw is ideal for the contractor and do it yourselfer alike. It is code listed in IAPMO UES ER 192 and meets 2018 and 2021 IRC and IBC code requirements for most common wood framing applications. Key Features Bold thread design provides superior holding power SawTooth point ensures fast starts,

The Strong-Drive SDWS Timber screw is designed to provide an easy-to-install, high-strength alternative to through-bolting and traditional lag screws. This screw is ideal for the contractor and do-it-yourselfer alike. It is code listed in IAPMO UES ER-192 and meets 2018 and 2021 IRC® and IBC® code requirements for most common wood framing applications.

Key Features

  • Bold thread design provides superior holding power
  • SawTooth® point ensures fast starts, reduces installation torque and eliminates the need for predrilling in most applications
  • Underhead nibs allow for head to drive flush to surface with reduced splintering
  • Large washer head provides a large bearing area
  • Size identification on all SDWS screw heads
  • 6-lobe T40 drive provides positive engagement that makes the screw easy to drive and improves bit life (replacement driver bit — BIT40T-134-R2)
  • Double-barrier coating provides corrosion resistance equivalent to hot-dip galvanization, making it suitable for certain exterior and preservative-treated wood applications, as described in the evaluation report

Applications

  • Structural wood-to-wood/engineered including ledgers; mass timber connections including CLT wall-to-wall, floor-to-floor, surface splines and lap joints

Product Includes

  • Retail and mini-bulk packs include one 6-lobe, T40 driver bit; bulk packs include two driver bits (BIT40T-134-R2)

Patent Information

  • US Patents 9,523,383; 11,181,138
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: 19481025022

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4.8 ★★★★★
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Verified Purchase
dareadel
Belleville, US
★★★★★ 5
Comfortable and Supportive Ergonomic Chair
I bought this chair a while ago but just got around to give a honest review, and I am okay with its comfort and support. The adjustable lumbar support provides excellent lower back relief. Assembly was straightforward, and the chair feels sturdy and well-built. A great value for anyone seeking comfort and quality in an office chair.
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Reviewed in the United States on September 8, 2025
M
Verified Purchase
Morgan
Lowell, US
★★★★★ 4
Decent chair for the price
Bought this for my boyfriend as an upgrade from his old chair. The wicker material is super comfy and breathable so you're never sweaty from the chair. It's also hyper adjustable. My only con is the bottom seat piece; it is a little too narrow for my hips to fit nicely (I'm a bigger girl) but for my boyfriend it just fits. It is not a deal breaker but something to consider especially if you're wider like me. Also since the entire bottom seat is wicker with zero padding, the front lip of can be a little uncomfortable with the plastic under piece slightly pushing into your legs but its more bothersome than anything. For the price I feel pretty good about it.
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Reviewed in the United States on December 2, 2024
A
Verified Purchase
Amazon Customer
Los Angeles, US
★★★★★ 5
Awesome chair and great design!
The mesh surface of this chair is incredibly comfortable and provides excellent elasticity, making it perfect for extended use. Assembly was a breeze thanks to the clear instructions provided. I also appreciate the adjustable air pump, which allows for easy height adjustments to suit my needs. The neck and lumbar supports are fully adjustable, aligning perfectly with my body to offer strong, customized support. Overall, it's an exceptionally cozy chair with a sleek, modern design that combines comfort with style.
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Reviewed in the United States on October 8, 2024
S
Verified Purchase
Suzanne M.
Port Orchard, US
★★★★★ 5
Great support and easy to assemble!
Really can't complain about anything about this chair, it was delivered quickly, packaged very securely and very easy to put together with simple instructions. I work from home and am older with multiple joint problems and this chair has many different ways to be adjusted that really help, especially if I'm extra achy or sore. I really like how the arm rest can be angled so that I can access my keyboard at my desk ergonomically and the arms can be lifted up and out of the way all together so that I can position myself closer to the desk when needed. A really nice chair for a great price.
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Reviewed in the United States on December 6, 2024
J
Verified Purchase
J Rose NYC
Lexington, US
★★★★★ 3
Great Chair, But Armrests Are a Nuisance
This ergonomic office chair has a lot going for it. The mesh back is comfortable and breathable, the adjustable lumbar support is excellent, and the 3D headrest is a welcome addition for long workdays. The rocking function is also a nice feature to have. Overall, the chair is very comfortable and supportive, and seems well-made with the SGS Class 4 gas cylinder. However, there's one glaring flaw that constantly annoys me: the armrests. While they are 3D adjustable, meaning they move up and down, forward and back, and side to side, there's no way to lock them in place. This means that every time I shift in my seat or even just slightly bump the armrest, it moves. It's incredibly frustrating to constantly be readjusting them. It disrupts my focus and makes it hard to find a truly comfortable and consistent position. If the armrests could be locked, this chair would be near perfect. As it stands, this one issue significantly detracts from the overall experience. If you're someone who fidgets or moves around a lot while sitting, I'd seriously consider whether you can live with armrests that constantly need readjustment. For me, it's a daily annoyance that makes me question whether I'd buy this chair again.
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Reviewed in the United States on February 4, 2025

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