The Stainless Steel Tee Nut (commonly referred to as a “T-Nut,” “Blind Nut,” or “Pronged Nut”) is the premier threaded insert solution for creating robust machine threads in wood, particleboard, and composite materials. Distinguished by its four sharp prongs, the Stainless Steel Tee Nut is designed to bite deeply into the timber substrate, preventing the nut from rotating or pushing out during assembly. This creates a flush, reliable fastening point for bolts and furniture glides.
Product Overview: Unlike standard zinc-plated alternatives that corrode and stain wood over time, our T-Nuts are stamped from high-grade Stainless Steel A2 (304) or marine-grade A4 (316). This makes them the mandatory choice for outdoor furniture, marine cabinetry, and—most importantly—outdoor climbing walls where moisture resistance is critical for safety.
Stainless Steel Tee Nut Specifications
| Product Name | Tee Nut / T-Nut / 4-Prong Insert Nut |
| Standard | DIN 1624 |
| Material | Stainless Steel A2 (304) / A4 (316) |
| Design | 4 Anti-Rotation Prongs + Flange |
| Common Sizes | M5, M6, M8, M10 (Standard Climbing Wall Size), M12 |
Engineering Insight: The Climbing Wall Standard
Why is the Stainless Steel Tee Nut the gold standard for climbing walls?
- Rust Prevention: Outdoor climbing walls are exposed to rain and sweat. A rusted carbon steel nut can seize up, making it impossible to change climbing holds, or worse, the threads can fail under a climber’s weight. Stainless steel guarantees longevity.
- Mechanical Lock: The 4 prongs provide essential torque resistance. When you tighten a climbing hold bolt with an Allen key, the T-Nut must not spin. Our precision-sharpened prongs ensure a permanent grip in plywood panels.
For more details on woodworking joints and inserts, please refer to the T-nut entry on Wikipedia.
Installation Guide
- Drill: Drill a hole through the wood matching the barrel diameter of the T-Nut (e.g., 12mm hole for an M10 nut).
- Insert: Place the Stainless Steel Tee Nut into the hole from the back side of the wood (opposite to where the bolt will enter).
- Set: Hammer the flange firmly until the prongs are fully embedded and the flange is flush with the wood surface. Alternatively, use a “pulling tool” to draw the nut into the wood for a vibration-free installation.
Frequently Asked Questions (FAQ)
Q: What size do I need for climbing holds?
A: The global standard for climbing holds is M10 (metric) or 3/8″-16 (imperial). Most modern gyms use M10. We supply M10 T-Nuts in bulk specifically for this purpose.
Q: Can I install them in hard hardwood?
A: Yes, but stainless steel is softer than hardened steel. For very hard woods (like oak), we recommend drilling small pilot holes for the 4 prongs to prevent bending them during installation.
Building a Climbing Wall or Furniture?
Handan Bolt is a leading supplier of Stainless Steel Tee Nuts. We offer bulk pricing boxes of 1,000pcs for gym builders and furniture factories.
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