The 2/5/10/20pc M3M16 304 Stainless Steel Extension Thick Round Column Joint Coupling Nut Cylindrical Connect Screw Nut (OD6xM3x6) is a set of sturdy coupling nuts designed to connect and extend round threaded rods and columns. Made from corrosionresistant 304 stainless steel, these thickwalled nuts provide reliable joints for a range of sizes from M3 to M16. Key benefits Versatile thread compatibility: suitable for M3 to M16 threaded components, enabling flexible use across projects. Durable and corrosion resistant: 304 stainless steel stands up to indoor and outdoor environments. Thickwalled construction: stronger joints and improved loadbearing capacity for reliable performance. Easy installation: cylindrical shape and standard threading allow quick alignment and tightening with common tools. Costeffective multipack: available in 2, 5, 10, or 20 piece sets to fit project scale. Key attributes Material: 304 stainless steel Thread range: M3 to M16 Outer diameter: 6 mm (OD6) Type: extension thick round column joint coupling nut, cylindrical connect screw nut Package options: 2piece, 5piece, 10piece, or 20piece sets Applications and use cases Joining and extending round threaded rods in frames, stands, supports, or cylindrical assemblies. Replacing worn or damaged joints in furniture, enclosures, or DIY machinery to restore rigidity and alignment. Prototyping and assembling smallscale projects such as robotics, fixtures, or display stands that require a sturdy, threaded connection. How to use Choose the appropriate Msize coupling nut to match your rods or studs. Align the threads and thread the coupling nut onto the mating threaded component. Tighten with a suitable wrench or tool, ensuring a secure and flush joint without overtorquing. Notes Ensure compatibility with your specific M3–M16 components for performance. The set quantity corresponds to the product option selected (2, 5, 10, or 20 pieces).