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DIN 7984
a) Unlike DIN 912, DIN 7984 screws features a low-profile head and a hexagonal socket drive (Socket thin head cap screws) with metric thread ranging from size M3 to M24
b) DIN 7984 screws have a thinner head because they are designed to be countersunk, allowing them to sit flush with the material surface. However, this design may not provide the same torque transfer capacity as the thicker head of DIN 912 screws, which are designed to handle higher torque due to their thicker cylindrical head shape.
| Description | |
|---|---|
| Material | Stainless steel / Carbon steel class 6.8/8.8/10.9/12.9 |
| Driving recess type | Hexagon socket drive |
| Head Type | Low cylindrical head |
| Thread Type | Machine screw thread |
| Surface color | Clean finish / Zinc finish |
| Type of thread locking patch | Nylon thread locking patch pink / red (approved source) |
| Type of end | Flat end |
| Field of application | Electronics / Furniture / General Assembly |
| Drive variations | Hexalobular socket drive (6 lobe) |
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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.
Hexalobular socket head cap screws with low head
Serrations under head / Hexalobular socket ISO 10664
Bent eye screws
Big flat head machine screws
Extremely low head
Micro screw M2
Screw refer to ISO 14581
Thin head square neck screw
Square neck under head