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#4-40 UNC x 5/16", Button Socket Head Cap Screw, Full Thread, Alloy Steel, Black Oxide
Unbrako Part No. B107146
Specs
Item | Button Head Socket Screw |
System of Measurement | Inch |
Diameter | #4 |
Thread Pitch / TPI | 40 |
Length | 5/16 |
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 |
Pack Type | Bulk |
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.
Resource
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