• Made of high-quality 304 stainless steel with superior corrosion and rust resistance. • 180-piece assortment kit including four technical sizes: #6 (60 units), #8 (40 units), #10 (40 units) and #12 (40 units). • Countersunk cup washer design provides a professional finish and prevents the screw from pulling through the material. • High hardness and durability material, suitable for use in humid environments without risk of oxidation. • Uniform threads and clear lines ensure balanced use and a safe, reliable closure. • Includes a transparent plastic box to keep parts organized and facilitate transport. • Versatile application in electronics, household appliances, furniture, automotive, robotics and DIY projects.