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ThermoPlug™ Master Plug Kit – Ash, 350 Ct.
Complete 350-count Thermally Modified Ash plug kit with 3/8" ThermoPlugs™, #8x2" stainless steel T15 star drive screws, Drill&Drive™ bit set, and 4 oz. Gorilla Glue. Engineered for thermally modified decking applications.
Available Options
Choose your preferred options and quantity below.
Standard
MP-KIT-TA-350
$172.12
per unit
About this product
The ThermoPlug™ Master Plug Kit for Ash is a comprehensive face-fastening system designed to create a seamless, fastener-free aesthetic on thermally modified ash surfaces. It solves the problem of visible screw heads by providing precision-cut Thermo-Ash plugs that blend with the wood grain, intended for contractors and homeowners installing high-end decking or cladding. This kit ensures a professional, high-performance finish by combining species-specific plugs with marine-grade fasteners.
Manufacturer Specifications
- Plug Material
- Thermally Modified Ash (Thermo-Ash)
- Fastener Material
- 305 Grade Stainless Steel
- Quantity
- 350 Plugs / 350 Screws
- Screw Dimensions
- #8 x 2-1/2 inch
- Drive Type
- T15 Star Drive
- Drill Bit Size
- 1/8 inch drill with 3/8 inch countersink
- Coverage Rate
- Approximately 100 square feet at 16 inch on-center spacing
- Included Glue
- 4 oz. Waterproof Wood Glue
Best used for
- 1Face-fastening Thermo-Ash decking boards for a traditional plugged look that conceals all hardware.
- 2Securing vertical Thermo-Ash siding or cladding where invisible fastening is required for architectural aesthetics.
- 3Installing perimeter border boards or stair treads where hidden fastener clips cannot be utilized.
- 4Matching fastener concealment in mixed-species projects where Thermo-Ash is used as a decorative accent alongside Ipe or Cumaru.
Pro tips for dense hardwoods
- Always align the wood grain of the plug with the grain of the decking board before tapping it in to ensure the most invisible finish.
- Use the included stop collar to maintain a consistent 3/8 inch countersink depth, preventing plugs from sitting unevenly.
- When working with dense thermally modified timber, clear wood chips from the drill bit frequently to avoid heat build-up and bit breakage.
- Wipe away any excess glue with a damp cloth immediately after seating the plug to prevent the glue from sealing the wood pores and affecting oil absorption.
Specifications
- Brand
- DeckWise
- Category
- Plugs & Plug Kits
Why Choose Plugs & Plug Kits?
How to Plug a Hardwood Deck
Countersink the Screw
Use a 3/8″ countersink bit to create a flat-bottomed hole roughly 1/4″ deep. The screw sits at the bottom; the plug fills the remaining space.
Apply Exterior Adhesive
Put a small bead of waterproof polyurethane glue (included in kits) into the hole. Too much glue squeezes out and creates a mess; too little and the plug loosens over time.
Seat the Plug
Tap the plug in with a rubber mallet or wood block until it seats against the glue. Ribbed plugs self-center and grip irregular holes; smooth plugs work best in precision-drilled holes.
Flush-Cut After Curing
Wait 24 hours for the adhesive to cure fully, then trim the plug flush with a sharp chisel or oscillating multi-tool. Sand lightly and apply finish.
Pro Tip from Our Deck Specialists
Order plugs cut from the same species AND the same board lot as your decking for the closest color and grain match. Plugs from a different harvest can look noticeably different.
Plugs & Plug Kits — Common Questions
Frequently Bought Together
Accessories that pair well with plugs & plug kits for a complete installation.
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