• Made of high-quality 304 stainless steel, these screws and nuts offer high hardness, oxidation resistance, and durability. • Clean, burr-free thread design, ensuring a stable structure and long service life. • Easy to use, the nuts expand the contact area, reducing pressure and protecting the parts. • Versatile in use, ideal for applications in electronics, appliances, chemicals, machinery, furniture, and more. • Includes 20 M10 hammer head screws and 20 hex flange nuts. • Screw dimensions: 20x9x30 mm; Nut dimensions: 20x20x10 mm. • Total package weight: 628g.