SDWC Truss Screw - The Simple New Way for Truss, Stud and Top Plate Connections

The Simpson Strong-Tie SDWC Truss Screw provides a truss and rafter-to-top plate connection as well as a method to fasten studs to top or bottom plates. The fully-threaded shank engages the entire length of the fastener providing a secure connection.▼
These SDWC Truss Screws come in two lengths. This shorter black one is for single top or bottom plates, and the longer orange one is for double top plates. They are different colours as a visual confirmation for your building inspector, so he can easily see that you’ve used the right length.
For more information check the SDWC product page
strongtie.co.nz/products/sdwc...
Where to Buy
strongtie.co.nz/where-buy
Our website
strongtie.co.nz

[@vermontmike9800]

I love Simpsons products but has there been tests to prove the screws outperform the hurricane straps?

[@SimpsonStrongTieNewZealand]

No, we do not test differing products side by side. Instead, each product is tested on an individual basis, and we use that information to build the tables in our tech data sheets for each one. These can be found here: strongtie.co.nz/products/sdwc-truss-screw, strongtie.co.nz/products/hurricane-tie

[@mashoutman]

What about gable trusses where access is limited. The front of the stud is blocked by the intersecting wall and the truss sits directly over the end stud.

[@SimpsonStrongTieNewZealand]

Hi @mashoutman, try to visualize your situation to see if we can help. If the stud is blocked from the front and you can't establish a connection between the stud and the truss, you may attempt to access it from both sides of the stud. Alternatively, you could use our SDWS structural screw for the top plate-to-stud fixing if it is accessible. See the flyer on Connection B (last page) strongtie.co.nz/products/sdws-timber-screw

[@wildpigremovalinc.executio8028]

Good video. One question. Because this is a new way to add storm strength to a home. Is it possible that adding truss screws could cause some of the trusses to split? Essentially weakening the connection instead of strengthening the joint. Would a simple pilot hole of the appropriate size benefit the install and achieve maximum structural strength without risking splitting the wood? I'm not a builder, or wood worker. But I do own a home within Tornado alley and I'm thinking these structural screws would strengthen my home.

[@SimpsonStrongTieNewZealand]

From what you described, we understand that you are retrofitting the existing old timber building. If there are many existing fixings on the trusses and the timber is not in good shape, we don’t recommend using the Truss Screw; instead, we recommend the Simpson Strong-Tie Hurricane Ties.

[@edbouhl3100]

I have a home that is 100 years old and the framing members are dry and hard. When I run into a splitting problem (mostly at board ends) with screws or nails I do use pilot holes, but the smaller the better. There isn’t any information I know of on the effect of strength by doing this. But it’s WAY better than relying on 100 year old nails.