200pcs Round Head Drill Screws Stainless Steel 304 Self Drilling Screw M4.2x16 Feature:1. Stainless steel: Made of 304 stainless steel, these self-drilling screws are rust-proof and corrosion-resistant and can be used in harsh environments.2. Clean thread: Round head screws have clean and accurate threads, are compact and strong, and are not easily deformed or slipped during use.3. Easy tightening: the cross-section of the metal screws is smooth without burrs, and the threads are bright and neat without gaps, which is conducive to tightening.4. 200pcs in 1 set: Including 200pcs stainless steel round head screw, with M4.2x16 thread, standard size, sufficient quantity, easy to use and replace.5. Suitable scenes: used for home and office appliances, workplace connectors, electrical products, communication equipment, repair work, DIY, etc. Specification:Item Type: Round Drill Head ScrewMaterial: 304 Stainless Steel Color: SilverApplication: Home & Office Hardware, Workplace Fasteners, Electrical Products, Communication Equipment, Marine Assembly, Machinery, Furniture, Repair Work, DIYPacking List:200 x Screws