Hey DIYers and woodworkers, these threaded inserts are seriously useful for building or repairing furniture! You get 30 complete sets - each includes a 1/4-20 x 19/32 inch insert nut and a matching 1/4-20 x 3/4 inch screw, plus two hex wrenches to make installation easy. The inserts are made from galvanized carbon steel that resists corrosion, while the screws are 8.8-grade carbon steel - basically, this is quality stuff that won't strip out or break on you. Installation is straightforward: drill a pilot hole, use the hex wrench to screw the insert into your wood, and now you've got solid, threaded connections for furniture assembly. What's great about these is they create much stronger connections in wood compared to just screwing directly into the material. I've used them for bookshelves, tables, even workshop jigs where I need to frequently disassemble and reassemble things. The hex socket drive means you can really torque them down securely without worrying about damaging the insert. They work great in hardwood, softwood, plywood - pretty much any wood material you're working with. Having 30 sets means you can tackle multiple projects or have plenty of spares for future repairs. The size is perfect for most furniture applications - not too big, not too small. Seriously, if you do any woodworking or furniture building, having these threaded inserts in your toolkit makes your projects so much more professional and durable. They're one of those small hardware upgrades that make a big difference in how solid your finished pieces feel.