Captor’s CAP-TOR deck screws solve the mushrooming problem that plagues composite decking installations. The reverse thread design prevents those ugly surface defects where standard screws push material up around the hole. At 350 pieces per pack covering roughly 100 square feet, these #10 x 2-3/4” screws match Pebble Grey boards from Fiberon (Rocky Harbor, Millstone, Whidbey) and Deckorators Venture Saltwater perfectly.
The engineering here targets composite decking’s specific challenges. That undercut head cuts cleanly through the tough capstock layer instead of dimpling or leaving residue. The extra-deep T-20 star drive recess reduces cam-out — crucial when driving hundreds of screws. Type 17 auger tip self-drills without splitting, while the tri-lobular shank design keeps driving torque low.
Material Options and Cold-Weather Performance
Three material choices handle Montana’s freeze-thaw abuse differently. Epoxy-coated carbon steel works for standard applications. Step up to 305 stainless for better corrosion resistance. The 316 stainless option justifies its premium for high-altitude UV exposure and extreme weather — think Whitefish Mountain Resort decks taking 300 inches of snow.
These screws carry ACQ compliance certification, meaning they’re approved for today’s copper-based pressure-treated lumber. That matters in Montana where treated lumber contacts are everywhere — deck framing, fence posts, retaining walls. The exterior use rating backs up the corrosion-resistant claims.
Installation That Actually Works
Standard pattern: two screws per joist, installed flush with the board surface. Pre-drilling only matters within 1 inch of board ends where splitting risk peaks. Starborn recommends their SMART-BIT Depth Setter Tool for consistent depth control — worth considering when appearance matters.
Field reports confirm these screws deliver a finished look, especially on deck stairs. The thicker shank and clean-cutting head work well with modern cap-stock materials, eliminating the dimpling that cheaper screws cause.
| Specification | Value |
|---|---|
| Size | #10 x 2-3/4” |
| Drive Type | T-20 Star Drive (extra deep recess) |
| Head Style | Undercut Head |
| Thread Type | Reverse Thread (anti-mushrooming) |
| Point Type | Type 17 Auger Tip |
| Color Match | #37 Pebble Grey |
| Coverage | ~100 sq ft per 350pc |
Worth it for contractors tired of callbacks about mushroomed screw holes. The 4.5-star average rating across Deckorators products reflects consistent performance. The reverse thread technology addresses a real problem — standard screws pushing composite material up around the fastener head.
Limited manufacturer warranty covers corrosion resistance for exterior use. The anti-mushrooming design matters more than warranty length here. These screws prevent the surface defects that ruin a deck’s appearance, especially on those premium Fiberon boards that cost a fortune.
Frequently Asked Questions
Q: Do these screws work with all composite decking brands?
The #37 Pebble Grey specifically matches Fiberon Rocky Harbor, Millstone, and Whidbey boards, plus Deckorators Venture Saltwater. The reverse thread anti-mushrooming technology works with any composite or PVC decking, but color matching varies by manufacturer.
Q: What’s the difference between the three material options?
Epoxy-coated carbon steel handles standard installations. 305 stainless steel adds corrosion resistance for tougher environments. 316 stainless steel provides maximum durability for extreme conditions — saltwater exposure, high altitude, or severe weather zones.
Q: How many screws do I need per square foot of decking?
The 350-piece pack covers approximately 100 square feet when following standard installation — two screws per joist. That’s roughly 3.5 screws per square foot for typical 16-inch joist spacing.
Q: Do I need special tools for installation?
You’ll need a T-20 star drive bit, which comes included. The SMART-BIT Depth Setter Tool helps maintain consistent depth but isn’t mandatory. No pre-drilling required except within 1 inch of board ends.
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