Check the listing for details. 3Pcs 1/2"-13 UNC 1.57" Length 304 Stainless Steel Coarse Hex Coupling Nuts. Condition: New. Listed at 22.62 USD. Whether for maintenance, construction, or repair tasks, these hex coupling nuts offer excellent applicability and reliability, and serve as essential accessories for machines, construction sites, automobiles, factories, home DIY projects, and more, ensuring secure and reliable connections. Widely utilized in communication, office equipment, electronics, aerospace, railway, instrumentation, machinery manufacturing, and other industries.Specification:Material: 304 Stainless SteelColor: Silver ToneThread Size: 1/2"-13 Female ThreadThread Type: UNC StandardOverall Size: 40 x 19mm/ 1.57 x 0.75 Inch (L x Hex Width)Package List: 3Pcs x Hex Coupling NutsAdvantage:Made of 304 stainless steel, the hex coupling nuts can be mildly magnetic, has high hardness high-temperature ductility, low magnetic permeability, and is durable for long-term use.