Key Features
Clamp-Free AssemblyThe barbed Fastenon tenon bites into the workpiece so parts stay pulled together during assembly. That means less time wrestling with clamps and faster glue-ups at the bench. 6mm x 38mm FitSized for matching Festool DOMINO mortises, this loose tenon gives you a quick way to align and join parts without fuss. The 6mm x 38mm size is a practical choice for smaller furniture and cabinet work. Glue Runners Built InThe molded runners leave room for glue inside the joint instead of hydraulic lock. You get easier insertion, better glue distribution, and a cleaner fit-up.
Overview
The Fastcap 6mm x 38mm Fastenon for Festool DOMINO, 100-Pack is a barbed loose tenon for wood joinery that helps pull parts together without clamps. This is a tenon designed for DOMINO joinery, panel alignment, and fast furniture or cabinet assembly. If you already use a Festool DOMINO machine and want a quicker way to assemble parts, this accessory is built around that job. Model Number: FASTENON 100 PC.
What makes the Fastenon different from a standard loose tenon is the barb pattern molded into both ends. Those barbs grab the sides of the mortise and help hold the workpieces together as you assemble. In real use, that means less slipping when you are lining up case parts, face frames, panels, or smaller cabinet components. It is not just about holding strength. It is about making assembly easier when you do not want to cover the bench with clamps.
FastCap also built glue runners into the body of the tenon. That matters because glue needs somewhere to go once the joint comes together. The runners help spread adhesive through the mortise instead of trapping it and fighting you on insertion. Add a little glue in each joint and you get the benefit of mechanical hold from the barbs plus the long-term bond of a glued loose tenon joint.
The 6mm x 38mm size is aimed at work where a smaller DOMINO tenon makes sense. For cabinet parts, drawer components, trim assemblies, shop fixtures, and light furniture joinery, this size gives you a fast and repeatable way to align pieces and lock them together during glue-up. If your work leans toward oversized stock or heavier structural joinery, you would step up in tenon size. But for common shop and install work, 6mm x 38mm is a very useful everyday size.
From a practical standpoint, this is a simple product that solves a real problem. Standard loose tenons do alignment well, but they do not actively hold parts in place during assembly. The Fastenon does. That can save time on one-off builds and even more time when you are repeating the same joints across multiple parts. Fewer clamps to manage means faster dry fits, faster glue application, and less frustration when working alone.
Compatibility is the main buying checkpoint here. This FastCap tenon is specifically sold for Festool DOMINO, so it is meant for users already working within that joinery system. If your mortises match the 6mm x 38mm size, this is a straightforward accessory upgrade. The 100-pack quantity also makes sense for production-minded woodworkers who do not want to run short in the middle of a build.
Who should buy it? Woodworkers, cabinet installers, trim carpenters, and serious DIY builders who use a Festool DOMINO and want faster assembly. If you value easy alignment and want joints that stay put while the glue sets up, this tenon earns its keep. If you do not own a DOMINO-style joiner or you need a general-purpose fastener for unrelated joinery, this is not your product. It is purpose-built, and that is exactly why it works.
Faster Assembly With Less Clamp Drama
The big win with this joinery accessory is that it helps hold parts together while you work. On a bench build, cabinet side, or face frame, that makes alignment easier before you ever reach for clamps.
- Barbed profile bites into the mortise walls to keep parts from shifting
- Useful when assembling panels, boxes, and smaller furniture parts by yourself
Built To Feed Glue, Not Fight It
The molded runners are there for a reason. They create channels for glue so the tenon goes in cleaner and the joint gets better adhesive coverage instead of a messy squeeze-out fight.
- Glue runners help distribute adhesive inside the mortise
- Barbs and glue work together for alignment plus holding power
Made For Accurate DOMINO Joinery
This size is meant for clean, repeatable loose tenon work where consistent fit matters. It is a simple way to keep mating parts lined up during assembly without adding extra setup steps.
- 6mm x 38mm tenon size for matching DOMINO-style mortises
- Good fit for cabinet parts, drawers, trim assemblies, and shop furniture
What’s in the Box
- (100) FastCap 6mm x 38mm FASTenon loose tenons
Key Specifications
| Type | Tenon |
|---|---|
| Size | 6 mm x 38 mm |
| Piece Count | 100 Pack |
| Compatibility | Festool DOMINO |
Compatibility
Joinery System Designed for Festool DOMINO joinery applications using the matching 6 mm x 38 mm tenon size. Assembly Use Made for mortise-and-tenon style wood assembly where alignment and glue-up speed matter.
Built For
WoodworkingCabinet AssemblyFurniture BuildingTrim CarpentryShop FixturesPanel Alignment
Pro Tip
Use the Fastenon for your dry fit first so you can feel how aggressively the barbs grab in your material. Then add a light amount of glue into each mortise, not a heavy fill, so the runners can do their job and the joint seats fully.
Tool Nut’s Take
Tool Nut’s Take
Fastcap 6mm x 38mm Fastenon for Festool DOMINO, 100-Pack is a smart upgrade for faster glue-ups
If you use a DOMINO and want joints that line up and stay put during assembly, this is one of those small shop accessories that makes the whole process smoother.
- Who it’s for: Woodworkers, cabinet builders, and trim guys already cutting DOMINO mortises and looking to speed up assembly.
- Why it stands out: The barbs hold parts together without depending entirely on clamps, and the glue runners show this thing was designed by someone who actually builds.
- Worth knowing: This is size-specific. Make sure your joinery setup calls for a 6 mm x 38 mm tenon before you buy a box.
Common Questions
- What is this product used for? It is a loose tenon for wood joinery, used to align and join parts in Festool DOMINO-style mortises.
- Does it require glue? The product is designed to hold with its barbs, and FastCap notes that adding glue inside each joint makes it even stronger.
- Will it help reduce clamping during assembly? Yes. The main benefit of the barb design is that it helps pull and hold joints together without relying as heavily on clamps.
- What size is this tenon? This version is 6 mm x 38 mm.
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