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Photographs are representational and may not be size accurate.

Winzer

#4-40 x 3/8 Inch Coarse Black Oxide Medium Carbon Steel Button Head Socket Cap Screw USA

Item 159.4.38

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Description

Socket head cap screws are commonly used in machine assembly for removable panels and parts. They have a round cap with a hex head and are tightened with a socket wrench drive. Longer caps are easier to see when fastened while button and flat head caps are less likely to snag clothing or linkages. Cap screws with a black oxide or armor coat finish resist corrosion.

  • Origin: Imported
  • Button head with hexagonal recessed drive
  • Designed for light duty applications such as securing guards covers and ornamental fixtures
  • Low head profile presents a pleasing appearance
  • Drive Size: 1/16
  • Drive Type: Internal Hex
  • Finish: Black Oxide
  • Head Diameter: 0.201 - 0.213 Inch
  • Head Diameter Max: .213
  • Head Height: 0.051 - 0.059 Inch
  • Head Height Max: .059
  • Head Style: Button
  • Industry Standard: ASME/ANSI B18.3
  • Item: Socket Cap Screw
  • Key Size: 1/16 Inch
  • Length: 3/8 Inch
  • Material: Medium Carbon Steel
  • Measurement: Inch
  • Origin: Imported
  • Specification: ASME/ANSI B18.3 ASTM F835
  • Tensile Strength : 145000 psi
  • Thread Length: 3/8 Inch
  • Thread Type: Coarse
  • Threads Per Inch: 40
  • Type: Full Threaded

Photographs are representational and may not be size accurate.

Key Specifications
Diameter #4
Drive Type Internal Hex
Finish Black Oxide
Head Style Button
Length 3/8 Inch
Material Medium Carbon Steel
Measurement Inch
Origin USA
Thread Type Coarse

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