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#4-40 UNC x 1/2", Button Socket Head Cap Screw, Full Thread, Alloy Steel, Black Oxide
Unbrako Part No. 104736
Specs
| Item | Button Head Socket Screw |
| System of Measurement | Inch |
| Diameter | #4 |
| Thread Pitch / TPI | 40 |
| Length | 1/2 |
| Thread Type | UNC (Coarse) |
| Thread Style | Fully Threaded |
| Material | Alloy Steel |
| Finish | Black Oxide |
| Hex Key Size | 1/16" |
| Thread Direction | Right Hand |
| Standard | Meets or Exceeds ASME B18.3; BS 2470 |
Features
Unbrako Button Socket Head Cap Screws are ideally suited for use in materials too thin to countersink and in non-critical loading applications. Under tightly controlled manufacturing processes, heads are forged for greater strength and full formed radius-root rolled threads assure close tolerances, maximum strength and superior fatigue resistance. Deep accurate sockets allow full tightening, and heat treated alloy steel ensures maximum strength without brittleness.
- Low head streamline design for a smooth, aesthetic appearance, ideally suited for use in materials too thin to countersink and in non-critical loading applications.
- Deep, accurate socket for maximum key engagement.
- Heat treatment in a controlled atmosphere for maximum uniform strength and surface integrity without brittleness or decarburisation.
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