Item Type: Hex Coupling Nut Material: 304 stainless steel Color: Silver Specification: M8x1.25 13 L15mm Purpose: Suitable for bolts, studs, machine screws, threaded rods, etc., and are suitable for indoor and outdoor use 1、20 PCS SET: The pack contains 20 pcs hex rod coupling nuts, ideal for replacing old worn or damaged ones, great for indoor and outdoor use. 2、MAIN FUNCTION: Connection nuts connect two piece threaded rods together from opposite ends and are used to hang various items vertically or horizontally. 3、304 STAINLESS STEEL: The hex connection nuts are made from high grade 304 stainless steel, resistant to rust and corrosion, highly stable in harsh environments. 4、GOOD ANGLE GRANULARITY: Long fine thread shank is hex shape and has 6 sides, offering good angle granularity for tool approaching. 5、PRECISE THREAD: These threaded rod connectors are well made by precise processing, with accurate M8 thread and size, ensures perfect connection.