
T.K.Excellent Torx Deck Screws #9 x 2-1/2 Inch
- Thread Size: #9×2-1/2
- Item Diameter: 0.2 inches
- Set Screw Thread Type: Unified National Coarse (UNC)
- Thread Type: Unc
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A structural exterior wood screw with a corrosion-resistant coating and a splitting-resistant tip, sized for deck framing rather than drywall.
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ASIN: B0CWKKVHDPModel: #9×2-1/2Category: Drywall Screws
Overview
A 395-piece box of T.K.Excellent #9 x 2-1/2 inch deck screws with a Ruspert rust-resistant coating, a torx or star T25 drive, a self-tapping point, and two T25 bits included for exterior wood and structural decking work.
Unlike the drywall screws in this set, this one is built for outdoor structural use: the tan Ruspert coating is meant to hold up to weather where a plain black finish would not, and the tail-cutting tip is shaped to reduce the splitting a plain point can cause near board edges. The torx drive is worth noting too, since it resists cam-out better than a Phillips bit under a driver.
- #9 x 2-1/2 inch, torx T25 drive
- Ruspert rust-resistant coating
- Tail-cutting, self-tapping point
- 395 screws plus two T25 bits
Who it's for
Suits deck building, fence work, and other exterior wood-to-wood fastening where rust resistance and drive strength matter. Not the right choice for interior drywall or trim work.
Pros and cons
- Ruspert coating rated for outdoor rust resistance
- Torx drive resists cam-out under torque
- Tail-cutting tip reduces wood splitting
- Two T25 bits included
- Only one size offered, #9 x 2-1/2 inch
- Not suited to interior drywall work
Performance notes
The self-tapping point removes the need to pre-drill in most cases, and the tail-cutting design behind the tip is meant to clear a path that keeps wood from cracking as the screw drives in. The included T25 bits match the torx or star drive, which keeps six contact points against the driver instead of the two a Phillips bit uses, cutting down on slipping under torque.
Specifications
| Brand | T.K.Excellent |
|---|---|
| Model | #9×2-1/2 |
| Dimensions & fit | |
| Thread Size | #9×2-1/2 |
| Item Diameter | 0.2 inches |
| Compatible Groove Diameter | 2.5 inches |
| Item Dimensions | 5.5 × 5.5 × 5.1 inches |
| Fastener Size | No. 9 |
| Size Name | #9×2-1/2 |
| Construction & materials | |
| Material Type | Carbon Steel |
| Exterior Finish | Metal |
| Color | Bright Yellow |
| Finish Types | Ruspert Coating |
| Included components | |
| Number Of Packs | 1 |
| Unit Count | 395 |
| Number Of Pieces | 395 |
| Other details | |
| Set Screw Thread Type | Unified National Coarse (UNC) |
| Thread Type | Unc |
| Thread Style | Right Hand |
| Fastener Type | Deck Screws, Wood Screws |
| Head Type | Flat |
| Screw Head Style | Flat |
| Drive System | Torx |
| Thread Coverage | Fully Threaded |
| Metal Type | Carbon Steel |
| Thread Class | Standard |
| Number Of Items | 395 |
| Part Number | #9×2-1/2 |
| Set Name | T.K.Excellent 395-Piece #9 X 2-1/2 Inch Deck Screw Set With 2 T-25 Drive Bits |
| Screw Point Style | Type A Point |
Frequently asked questions
What drive bit do these screws use?
A torx or star T25 drive, and two T25 bits are included in the box.
Are these rated for outdoor use?
Yes, the Ruspert coating is designed to resist rust and decay in outdoor weather, which fits their intended use as deck screws.
Do I need to pre-drill?
No, the self-tapping point is designed to drive directly into wood without a pilot hole.