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DIN 912 / ISO 4762
a) DIN 912 (ISO 4762) refers to a standard for metric socket head cap screws, also known as cup head screws. These fasteners feature a cylindrical head with a hexagonal recess (socket) in the center, allowing them to be tightened or loosened using a hex key or Allen wrench. These screws are commonly used in various applications where a high tensile strength is required.
b) A socket head cap screw with a knurled head is a modified version of the standard DIN 912 screw, featuring a textured knurled surface around the head. This design provides additional grip for manual handling or adjustment, making it ideal for certain applications.
| Description | |
|---|---|
| Material | Stainless steel / Carbon steel class 8.8/10.9/12.9 |
| Driving recess type | Hexalobular internal drive (6 lobe) |
| Head Type | Cylindrical head |
| Thread Type | Machine screw thread |
| Surface color | Clean finish / Zinc finish / Black oxide / Phosphate coating |
| Thread size / diameter | M3 to M12 |
| Field of application | Automotive / Electronics / Machinery |
| Drive variations | Hexagon socket drive |
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DIN 965 / ISO 7046
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.
6 lobe pan washer head tapping screws for thermoplastics
a) A self-tapping screw for thermoplastics is a specialized fastener designed to create its own threads as it is 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.
Phillips hex washer head Trilobe thread rolling screws DIN 7500
a) DIN 7500 specifies self-tapping screws for metal, also known as thread-forming screws. These screws are designed to form or cut threads in a pre-drilled hole in metal materials, without requiring a pre-cut thread.
b) Three indentations on the thread allow better debris clearance and assist in the thread-forming process.
c) A standard trilobe thread forming screw without indentations is avaialble upon request.
Thin head square neck screw
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DIN 34800 External Hexalobular Drive Head Bolt With Small Flange
a) This bolt features an external hexalobular socket with a small flange, and is designed for applications requiring a high torque transfer with reduced risk of cam-out.
b) The star-shaped head allows for great torque transfer by distributing the load more evenly across the drive, compared to traditional drive systems like Phillips, Pozi or slotted.