Big flat head machine screws

a) DIN 965 specifies the standard for countersunk head screws with a cross recess drive (commonly known as a Phillips drive). These screws are designed to sit flush with the material’s surface when installed, ensuring a smooth and clean appearance.

b) The cross-recessed drives, such as Phillips and Pozi, are widely used for their ease of installation and removal with compatible screwdrivers. Additionally, the hexalobular socket (6-lobe) design is commonly employed to provide improved torque transfer and minimize the risk of cam-out during fastening.

a) A stainless steel self-tapping thread for thermoplastics is a type of screw designed specifically to create its own threads when driven into plastic materials.

b) These screws have wider, sharp, and deep threads, which allow them to cut into the softer thermoplastic material efficiently, creating a secure, long-lasting hold.

Screw refer to ISO 14581

Type H or type Z available upon request

With small collar around body shank

a) A ribbed neck screw is a type of fastener designed with a special feature on its shank or neck. Instead of a smooth or threaded surface, the neck of the screw has ribbed, serrated, or knurled features. These ribs or serrations provide additional grip and resistance when the screw is driven into a material, preventing it from rotating or loosening.