Key Features
Built for Harsh Exteriors Type 316 stainless steel gives this screw the corrosion resistance needed for docks, boardwalks, decks near water, and other exposed exterior jobs where standard fasteners do not hold up. Drives Easier The raised-ridge box thread design cuts driving torque, so the screw goes in with less effort and you can get more done per battery charge when running a drill or impact driver. Secure T27 Drive The Simpson Strong-Tie Strong-Drive DWP Wood SS Screw uses a T27 6-lobe drive that helps prevent cam-out, holds the bit better, and makes long structural wood screws less frustrating to install.
Overview
The Simpson Strong-Tie Strong-Drive DWP Wood SS Screw, #14 x 5-in. T27, Flat Head, Type 316, 500-Pack (T14500WPB) is a structural exterior wood screw built for wood-to-wood fastening where corrosion resistance matters as much as holding power. This is a hand-drive screw designed for fastening wood to wood in decks, docks, boardwalks, and other exterior structures. Model Number: T14500WPB.
What makes this one worth paying attention to is the combination of size, material, and drive design. At #14 x 5 in., it is built for heavier exterior connections where a longer structural screw makes more sense than a basic deck screw. The flat head helps it seat cleanly, while the sharp point is made to start fast and penetrate hardwood products more easily.
Simpson’s box thread design with raised-ridge technology is here for a practical reason, not a brochure reason. It reduces driving torque, which means less strain on your drill, less fighting the fastener on longer runs, and more screws driven per battery charge. On jobs where you are installing a lot of structural exterior screws, that matters.
The T27 6-lobe drive is another real-world upgrade. It gives the bit a more secure fit than a basic recess style, helping reduce cam-out and bit wear when you are sinking long screws into dense lumber, engineered wood, or polymer materials. That translates into cleaner installs and fewer stripped heads, especially when you are working overhead or in awkward deck framing positions.
Material choice is a big part of why this screw exists. This version uses Type 316 stainless steel, which Simpson calls out for seaside and severe corrosion environments. If the job is near saltwater, high moisture, or constant weather exposure, that extra corrosion resistance is the difference between using the right fastener and creating a callback later.
This screw is also part of Simpson’s load-rated DWP Wood SS line. The product family is described as tested for structural exterior connections, with applications called out for decks, docks, boardwalks, and general exterior fastening. For buyers comparing options, that means this is not just a cosmetic trim screw. It is aimed at exterior structural wood connections where performance and durability both matter.
In the box, you get 500 screws, plus (2) T27 6-lobe driver bits. That makes this bulk pack a good fit for contractors, deck builders, marine construction crews, and serious DIY users doing a full exterior build. If you need a corrosion-resistant structural wood screw for wet or coastal conditions, this is the right kind of fastener to be looking at.
Made for Wet and Coastal Builds
This screw is aimed squarely at exterior structural work where moisture and exposure are constant. The Type 316 stainless steel build makes it a smart choice for dock work, boardwalk repairs, and deck construction near water.
- Type 316 stainless steel for severe corrosion resistance
- Applications include decking, docks, boardwalks, and general exterior wood fastening
Drives Long Screws With Less Fight
The thread and point geometry are doing the heavy lifting here. Simpson’s box thread pattern is built to lower driving torque, while the sharp point helps the screw start fast and bite into wood and engineered wood cleanly.
- Box threads with raised-ridge technology reduce driving torque
- Sharp point is designed to penetrate hard wood products with ease
Better Bit Engagement on Structural Fastening
Long exterior screws are only pleasant to use when the bit stays planted. The T27 6-lobe drive gives you a more secure fit, helps prevent cam-out, and extends bit life when you are running a lot of fasteners.
- T27 6-lobe drive for secure bit fit
- Flat head seats cleanly for flush fastening in wood-to-wood applications
Good Fit for Deck Fascia and Framing Connections
At 5 inches long and sized at #14, this screw is built for bigger exterior wood connections than a standard deck screw. It is a practical option when you need a structural fastener for treated lumber and exposed outdoor assemblies.
- #14 screw size with 5 in. length
- Use with wood, engineered wood, and polymer materials
What’s in the Box
- (500) Simpson Strong-Tie Strong-Drive DWP Wood SS Screws, #14 x 5 in.
- (2) T27 6-lobe driver bits (BIT27T-2-R2)
Key Specifications
| Fastener Type | Hand-Drive Screw |
|---|---|
| Application | Fastening Wood-to-Wood |
| Material | Type 316 Stainless Steel |
| Screw Size | #14 |
| Length | 5 in. |
| Head Diameter | 0.460 in. |
| Drive Type | T27 6-Lobe |
| Head Type | Flat Head |
| Thread Type | Box Threads |
| Point Type | Sharp Point |
| Packaging Quantity | 500 |
| Approx. Count per lb. | 21 |
Compatibility
Material Compatibility Designed for use with wood, engineered wood, and polymer materials. Drive Interface Uses a T27 6-lobe drive. Two T27 driver bits are included in the pack.
Built For
Deck Building Dock Construction Boardwalk Repairs Exterior Wood Fastening Marine Environments General Contracting Remodeling DIY / Hobbyist
Pro Tip
Use the included T27 bit, not a close-enough substitute. On a long #14 structural screw like this, proper bit fit makes a big difference in preventing cam-out and getting the flat head seated cleanly in dense exterior lumber.
Tool Nut’s Take
Tool Nut’s Take
Simpson Strong-Tie Strong-Drive DWP Wood SS Screw for serious exterior wood jobs
If you are building near water or anywhere corrosion is a real concern, this is the kind of structural exterior screw you buy once instead of replacing later.
- Who it’s for: Deck builders, dock crews, contractors, and homeowners doing exposed exterior wood-to-wood fastening.
- Why it stands out: Type 316 stainless steel, reduced driving torque from the box thread design, and a T27 6-lobe drive that holds the bit better on long installs.
- Worth knowing: This is a 500-pack of #14 x 5 in. screws, so it is geared more toward structural exterior work than light trim or general-purpose fastening.
Common Questions
- What materials can this screw be used with? It is designed for use with wood, engineered wood, and polymer materials.
- What drive type does it use? This screw uses a T27 6-lobe drive.
- Is this a corrosion-resistant screw for coastal or marine exposure? Yes. It is made from Type 316 stainless steel and is identified for seaside and severe corrosion applications.
- What kind of jobs is it intended for? Common applications include decking, docks, boardwalks, and general exterior wood fastening.
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