YXQ rod coupling is designed with female thread and hex rod, installed with sleeve anchor, wedge anchor and all thread rod, etc. Product Name: Hex Coupling Nut Material: 304 Stainless Steel Thread Size: M6 - 1.0 Hex Width: 10mm / 0.39" Length: 10mm / 0.39" Grade: 4.8 Package Content: 12 pcs x Hex Coupling Nut