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#4-40 UNC x 5/8", Flat Socket Head Cap Screw, Full Thread, Alloy Steel, Black Oxide

Unbrako Part No. 103424

Specs

Item Countersunk / Flat Socket Head Screw
System of Measurement Inch
Diameter #4
Thread Pitch / TPI 40
Length 5/8
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 BS 2470; ANSI B18.3

Features

Unbrako Flat Socket Head Cap Screws provide reliable fastening and a smooth, flush mounting that enhances the appearance of the product on which they are used. The closely controlled head angle assures flush seating, and close all-round head contact by initially contacting at the upper portion of the head bearing area in the countersunk hole. Closely controlled threads mean tighter and more secure fits, and stronger assemblies. Deep accurate non-slip sockets provide maximum key engagement for full tightening without marring the surrounding surface.

  • Uniform under-head angle gives maximum contact with side walls.
  • Precision forged head for continuous grain flow and maximum strength.
  • Non-slip hex socket prevents marring of the material.

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