Check the listing for details. 1/4-20 UNC 1.5D 304 Stainless Steel Wire Thread Insert Threaded Sleeve 5pcs. Condition: New. Listed at 9.12 USD. Specifications:Thread Size: 1/4-20 UNCNominal Length: 1.5DOverall Length: 7.6mm / 0.3"Type: HelicalMaterial: 304 Stainless SteelPackage Content: 5pcs x Wire Thread InsertsDescriptions:Made of 304 stainless steel, it has good corrosion resistance, rust resistance and excellent oxidation resistance. 304 stainless steel is one of the most widely used chromium-nickel stainless steels, with wear resistance, high hardness.Widely used in mechanical equipment, construction machinery and other equipment that need thread repair. The helical thread insert is not easy to slip, with deep and clear thread, no deformation. Great for thread repair and maintenance work.Features a certain of elastic, and provides an even load on the thread. It is resistant to vibration.