Need a lead screw for your 3D printer's Z-axis or a CNC build? This T12 screw is 500mm long (about 19.7 inches) with a 12mm diameter. The thread is an Acme type with a 2mm pitch and 8mm lead – and it's 4-start, which means it moves faster per rotation compared to single-start screws. Comes with a matching brass nut that threads on smoothly. Made from stainless steel, so it resists rust and wears well. Perfect for precision motion in DIY CNC routers, 3D printer upgrades, or any linear motion project where you need accurate vertical movement. Just measure your existing setup to make sure the length and thread specs match. The brass nut reduces friction and lasts longer with regular lubrication. Simple, no-fuss component for makers and tinkerers.
