Secure Anti-Spin Design: Stop struggling with nuts that spin in place. Our four pronged tee nuts feature sharp, hardened prongs that dig deep into wood, chipboard, or plywood, providing a permanent anti-rotation lock during bolt tightening. Reliable Carbon Steel Construction: Unlike stainless steel that can gall, these wood t nuts are crafted from zinc plated carbon steel. This offers high hardness to resist pull-through and provides robust corrosion protection for long lasting performance in furniture. Versatile Metric Assortment Kit: Stop searching for the right size in different stores. This 80pcs set includes 5 popular metric thread sizes: M3, M4, M5, M6, and M8. The M4 and M6 are ideal for chair legs, while M8 works great for workbenches and heavy jigs. Wide Application for Workshop & Home: Create a threaded metal socket in wood instantly. Ideal for professional woodworkers and DIYers, these t slot nuts are essential for building CNC routers, assembling bed frames, repairing sofas, securing climbing holds, or installing cabinet hardware. Easy Installation without Special Tools: Simplify your workflow. Drill a suitable sized hole, tap the captive nut in until the flange is flush, and tighten the bolt. The four prongs eliminate the need for a wrench to hold the nut, making assembly of flat pack furniture fast and frustration free.