Welcome To; Buy Hex Grub Screws, We Will Provide You With The Best Service High Quality Allen Set Screws Are Made Of High Quality 304 Stainless Steel, Present And Provide Good Resistance To Corrosion. Corrosion In Bad Environment, Such As High Temperature, Cold Weather And Humid Areas, They Have Superior Resistance To Corrosion. Rust And Excellent Corrosion Resistance. Oxidation, Which Can Ensure A Long Service Life Design: Hex Socket Cap Design, Can Easily Be Driven By Allen Keys And Is Not Easy To Slip, It Also Has A Thin Edge That Could Dig Into The Contact Surface For A Secure Grip On A Wide Range Of Surfaces, Easy To Grip. Installwide ApplicationScrew Flat Head Are Widely Used In Various Precision Machinery, Instruments, Electronic Products, Locks, Lamps And Other Industries, This Kit Is Ideal For Replacing Lost And Missing Fixing Screws,A Variety Of Screws Tee Of Sizes To Meet The Maximum Your Needsspecifications: Material: 304 Stainless Steel Standard: A2-70 Din916 Color: Silver Quantity: 240 Pieces Box Size: M2.5 M3 M4 M5 M6 M8