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DIN 933 / ISO 4017
a) DIN 933 refers to a standard for hexagon head bolts with full threads. These bolts are commonly used in mechanical and structural applications that require high strength and reliable fastening.
b) Typically made from carbon steel, stainless steel, or alloy steel. They are available with various surface finishes, such as zinc plating, hot-dip galvanizing, or black oxide, to improve corrosion resistance and enhance durability.
| Description | |
|---|---|
| Material | Stainless steel / Carbon steel class / Alloy steel |
| Head Type | Hexagon head |
| Thread Type | Machine screw thread |
| Surface color | Clean finish / Zinc finish / Black oxide / Phosphate coating |
| Thread size / diameter | M3 to M20 |
| Field of application | Automotive / Construction / Machinery / Industrial equipment |
| Drive variations | Hexagon head |
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DIN 6922 (with reduced shank)
DIN 6922 outlines the dimensions and technical specifications for hexagon flange bolts featuring a reduced shank. These bolts are characterized by a flange, a disc-shaped extension beneath the head, serving as an integrated washer. The inclusion of the flange enhances the bearing surface, facilitating load distribution, particularly advantageous in specific applications. Dog point with truncated cone end.
ISO 7380-2
a) ISO 7380-2 specifies the standard for hexagon socket button head screws with collar. Generic hexalobular socket (6 lobe) is another common alternative used in various applications.
b) This screw features an extended cylindrical tip, known as a dog point, at the end of the threaded portion, enabling precise alignment and positioning in mating components.
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Hexalobular socket button 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.
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DIN 7504K Hex washer head self drilling screw
a) A self-drilling screw is a type of screw designed to drill its own hole and tap its own threads into materials as it is driven in, eliminating the need for a pre-drilled hole. The screw features a drill-like tip, often referred to a self-drilling tip, which helps the screw cut through the material. This makes installation faster and more efficient.
b) Serrations under head create additional friction between screw head and the material. The serrated surface provides better grip for tools like screwdrivers, allowing more torque to be applied during installation.