M3 x 40mm Slotted Cheese Head Screws (DIN 84) - A2 Stainless Steel Slotted Cheese Head Machine Screws Feature a cylindrical head and a slotted drive. The slotted drive is the simplest form of screw drive which is designed to be used with a Flat Head Screwdriver, whilst the cylindrical cheese head provides extra strength and durability whilst tightening. Machine Screws are massively versatile as they are available in a wide variety of head styles and drive types. These Slotted Cheese Head Screws are made from A2 Stainless Steel which provides corrosion and oxidation resistance. For larger quantities or custom sizes, please email and one of our team will provide you with a quotation. M3 x 40mm Slotted Cheese Head Screws (DIN 84) - A2 Stainless Steel