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Representative image of ThermoPlug™ Master Plug Kit – Ash, 1050 Ct. by DeckWise — not the actual product photo

Not the actual product photo. Real product photography coming soon. Specifications and pricing below are accurate.

DeckWise
Plugs & Plug Kits

ThermoPlug™ Master Plug Kit – Ash, 1050 Ct.

Bulk 1050-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. High-volume kit for professional thermo-ash deck installations.

Available Options

Choose your preferred options and quantity below.

Standard

MP-KIT-TA-1050

$409.08

per unit

About this product

The DeckWise ThermoPlug™ Master Plug Kit for Ash is an all-in-one fastening system designed to hide screw heads in thermally modified Ash decking and siding. This kit provides a seamless, fastener-free aesthetic for high-end residential and commercial projects where visible hardware would detract from the natural wood finish. By combining species-matched plugs with high-quality stainless steel screws, it ensures both structural durability and a professional, clean surface.

Includes 1,050 genuine Thermally Modified Ash plugs for a perfect color and texture match.
Comes with 305-grade stainless steel screws (#8 x 2-1/2") for high-level corrosion resistance.
Comprehensive kit includes a pre-drilling bit, a free-spin depth stop collar, and waterproof wood glue.
Features tapered plugs designed for a tight friction fit that seals the fastener away from the elements.

Manufacturer Specifications

Plug Material
Thermally Modified Ash
Screw Material
305 Stainless Steel
Screw Dimensions
#8 x 2-1/2 inch
Plug Quantity
1050 count
Screw Quantity
1050 count
Plug Diameter
3/8 inch
Drill Bit Size
1/8 inch drill bit with 3/8 inch countersink
Adhesive Included
4 oz. bottle of wood glue

Best used for

  • 1Installing thermally modified Ash decking in conjunction with Ipe or Cumaru borders to achieve a uniform, screw-free walking surface.
  • 2Fastening Ash vertical siding or exterior cladding to complement tropical hardwood accents on modern architectural projects.
  • 3Constructing high-end rooftop decks where a smooth, fastener-free finish is required for barefoot comfort and aesthetics.
  • 4Building custom outdoor site furnishings, such as benches or planters, using Ash that matches existing tropical hardwood installations.

Pro tips for dense hardwoods

  • Always align the grain of the Ash plug with the grain of the deck board before driving it home to ensure the fastener is virtually invisible once finished.
  • Apply a small drop of glue to the side wall of the plug rather than the bottom of the hole; this prevents 'hydrolock,' which can stop the plug from seating flush.
  • When working with dense materials, periodically clear the drill bit of debris to prevent heat buildup and ensure clean, consistent countersink depths.

Specifications

Brand
DeckWise
Category
Plugs & Plug Kits

Why Choose Plugs & Plug Kits?

Species-matched for invisible finish
Smooth or ribbed options
Easy installation
Complete kits with screws & glue

How to Plug a Hardwood Deck

1

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.

2

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.

3

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.

4

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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Call 1-844-674-4455

Need Help Choosing the Right Accessory?

Our deck specialists have installed thousands of hardwood decks and can recommend the exact accessories for your project, species, and climate.