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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
|Item||Button Head Socket Screw|
|System of Measurement||Inch|
|Thread Pitch / TPI||40|
|Thread Type||UNC (Coarse)|
|Thread Style||Fully Threaded|
|Hex Key Size||1/16"|
|Thread Direction||Right Hand|
|Standard||Meets or Exceeds ASME B18.3; BS 2470|
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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- Box Qty: 2,500
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