Key features

• •[Professional Nut Production, More Than 10 Years of Industry Experience] Serrated flange SAE hex lock nuts and hex nut set is durable, practical, and quality. Exquisite and reliable craftsmanship, high strength and no deformation.
• •Innovative Flange Nuts + Traditional Hex Nuts, Totally 160Pcs in 3 Sizes, More quantity and More Economical] Three SAE models to meet your various needs. Thread Size: 1/4"-20, 5/16"-18, 3/8"-16; Hex Socket Drive: 7/16", 1/2", 9/16". Hope the flange nut assortment hex nut kit can bring you more enjoyment.
• •[Flange nuts 1/4-20, 5/16-18, 3/8-16, with Anti-skid Teeth, Which Increases The Contact Area, Is Firmer and Prevents Looseness] Flange nut: Nut and washer integrated. Good combination of technology and quality. More efficient, time-saving and more convenient for life. More pleasantly surprised is that it is equipped with a traditional hexagonal nut(1/4-20, 5/16-18, 3/8-16). Two kinds of insert hex lock nuts combination sets, double to meet your expectation.
• •[High Quality 304 Stainless Steel, More Durable Than Zinc Plated Alloy Steel] Both the flange nuts and hex nuts are made of 304 stainless steel, precision manufacturing, has good rust resistance, heat resistance, low temperature strength and other mechanical properties. Nice Serrated flange nuts and hex lock nuts kit.
• •[What's in the package? ] Totally 160Pcs. Flange hexagon nut: 20pcs 3/8"-16, 30pcs 5/16"-18, 50pcs 1/4"-20; Hexagon nut: 20pcs 3/8"-16, 20pcs 5/16"-18, 20pcs 1/4"-20.