iExcell 250 Pcs M3 x 6mm/8mm/10mm/12mm/16mm Stainless Steel 304 Hex Socket Flat Head Cap Screws Kit

?  Meets/exceeds: DIN 7991 ?  Stainless steel 304, high strength and anti-corrosion in various environments ?  Screw Head: flat head, known as countersunk head ; screw drive: hex socket , known as internal hex drives ?  Countersunk angle: 90 degree ?  Easy to store: These screws come in an easy-use separated girds storage case Item-------------Thread Length-------Total Length M3 x 6mm ----------3.8mm-------------6mm M3 x 8mm ----------5.8mm-------------8mm M3 x 10mm ---------7.8mm------------10mm M3 x 12mm ---------9.8mm------------12mm M3 x 16mm---------13.8mm------------16mm Package Contains: M3 x 6mm-------------------50 Pcs M3 x 8mm-------------------50 Pcs M3 x 10mm------------------50 Pcs M3 x 12mm------------------50 Pcs M3 x 16mm------------------50 Pcs Total------------------------250 Pcs About Hex Socket Drives  Hex Socket Drives, also known as internal hex drives , have a hexagonal hole in the center that requires an Allen key, also known as a hex key or Allen wrench. About Flat Head  Flat head screws are designed to fit flush to the surface when used with countersunk holes.