Product Design Hexagonal socket design for easy operation with hex wrenches, preventing slippage. Features a thin edge that digs into the contact surface for a secure grip on various materials. Material High-quality 304 stainless steel. Stainless steel is a common material with a density of 7.93 g/cm³, also known as 18/8. It offers good workability and high toughness up to approximately 800 degrees Celsius. Dimensions √M2.5*3----20 Pieces √M2.5*4----20 Pieces √M3*3------20 Pieces √M3*4------20 Pieces √M3*10----20 Pieces √M4*4----20 Pieces √M4*6----20 Pieces √M4*8----20 Pieces √M5*5----20 Pieces √M5*8----20 Pieces √M5*10---20 Pieces √M6*6----20 Pieces √M6*10----20 Pieces √M8*8----20 Pieces √M8*12----20 Pieces Usage Ideal for door handles, faucets, fixtures, buttons, assembly repairs, plumbing, and other small repairs around the workshop, garage, or home.