DIN 906 Conical Plug with Hex Socket
DIN 906 is a conical plug with hex socket made of A2, A4 steel or brass, with zinc plating on request. FLOK supplies this fastener for sealing technical ports.
The conical plug with hex socket to DIN 906 is a part for sealing technical ports to prevent leakage of lubricating oils and other fluids in internal combustion engines, gearboxes, transmissions and similar assemblies. It is a cylindrical metal element with external metric thread. Inside, in a recessed position, there is a hex socket for driving the plug into its working position with a special wrench. Once installed, the part sits fully flush with the surface it is mounted on.
Since the plug operates in aggressive liquid environments, it is made from special steels or non-ferrous metals, such as brass. The base material for the shut-off element is acid-resistant austenitic stainless steel A4. If required, the plug can be ordered with additional zinc protection. Plugs are used in mechanical engineering, instrument making and other types of production.
Brass plugs are made from an alloy of 70 percent copper and 30 percent zinc. This material has anti-corrosion properties, and the plug withstands large temperature swings. If the product is made of A2 steel, nickel and chromium are added to the composition — such a plug retains its metric dimensions at temperatures from -200 to +450 degrees Celsius, which allows its use including on spacecraft.
To increase resistance to salt water and various acids, molybdenum is added to the steel composition. The temperature limit for such steel is -60 degrees.
DIN 906 Conical Plug with Hex Socket Dimensions
| d | b | s |
|---|---|---|
| R 1/8” | 8 | 5 |
| R 1/4” | 10 | 7 |
| R 3/8” | 10 | 8 |
| R 1/2” | 10 | 10 |
| R 3/4” | 12 | 12 |
| R 1” | 12 | 17 |
| R 1 1/4” | 18 | 22 |
| R1 1/2” | 20 | 24 |
| M8x1 | 8 | 4 |
| M10x1 | 8 | 5 |
| M12x1.5 | 10 | 6 |
| M14x1.5 | 10 | 7 |
| M16x1.5 | 10 | 8 |
| M20x1.5 | 10 | 10 |
| M24x1.5 | 12 | 12 |
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