100pcs round head drill bit screw with washer 304 stainless steel self tapping screws M4.2x19 Feature:1. 100pcs in 1 set: including 100pcs round head screws, thread specification is M4.2x19, enough quantity, easy to use and replace.2. 304 Stainless Steel: Self-tapping screws are made of 304 stainless steel, rust-resistant and corrosion-resistant, and can be used in a variety of harsh environments.3. Clean threads: the thread is clear and accurate, compact and strong, and not easy to be deformed or moved during use, it has good stability.4. Glossy surface: the cross-section of these bolts is shiny without burrs, neat, and gapless, which is conducive to fast tightening.5. Multiple use: widely used in household and office appliances, fastener installation in the workplace, machine maintenance, DIY, etc. Specification:Item Type: Round Head ScrewMaterial: 304 Stainless SteelColor: SilverApplication: Home & Office Hardware, Workplace Fasteners, Electrical Products, Communication Equipment, Marine Assembly, Machinery, Furniture, Repair Work, DIYPacking List:100 x Screws