1/4"-28 X 3/8" Hex Socket Head Cap Screws, Fine Thread, Alloy Steel, Made in U.S.A.

PART NUMBER:
SO007-1428X38
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  • Socket cap screws are precision fasteners often used in machine parts, die fixturing and clamping.
  • A cylindrically shaped socket head cap screw is considered the strongest of all head styles.
  • An internal hex socket drive is also known as an Allen drive.
  • Alloy steel fasteners are significantly stronger than standard low carbon steel fasteners.
  • In general, fine thread fasteners are about 10% stronger than coarse threads under static loading.
DIMENSIONAL ATTRIBUTES
  • Diameter (Nominal): 1/4"
  • Thread Pitch: 28
  • Diameter (Dimension): 0.25"
  • Diameter (Minimum): 0.2435"
  • Diameter (Maximum): 0.25"
  • Length (Nominal): 3/8"
  • Thread Length (Nominal): 0.375"
  • Drive Recess Size: 3/16"
  • Drive Recess Width: 0.188"
  • Drive Recess Depth: 0.12"
  • Head Diameter (Minimum): 0.354"
  • Head Diameter (Maximum): 0.375"
  • Head Height, Overall (Minimum): 0.244"
  • Head Height, Overall (Maximum): 0.25"
PRODUCT ATTRIBUTES
  • Category: Socket Head Cap Screws
  • System of Measurement: Inch
  • Brand: Aspen Fasteners
  • Head Style: Cylindrical Head
  • Drive Style: Hex Socket Drive
  • Pitch: Fine Thread
  • Thread Direction: Right-Hand Thread
  • Material: Steel
  • Material Grade: Alloy Steel
  • Material Processes: Heat Treated
  • Coating: Oxidized
  • Coating Color: Black
  • Origin: Made in U.S.A.
  • Standards and Specifications: ASME B18.3
Thread Pitch:
28
Origin:
Made in U.S.A.
Thread Direction:
Right-Hand Thread
Coating:
Oxidized
Order:
Machine Thread Fasteners
Category:
Socket Head Cap Screws
Length (Nominal):
3/8"
Brand:
Aspen Fasteners
Shop by Material:
Steel
Drive Style:
Hex Socket Drive
Material Processes:
Heat Treated
Coating Color:
Black
cad_3d_viewer_url:
https://3d.aspenfasteners.com/viewer/?cad_model=obj/SO007-1428X38
Diameter (Nominal):
1/4"
Material:
Steel
Shop by Application:
Socket Products
Shop by System of Measurement:
Inch
Material Grade:
Alloy Steel
Pitch:
Fine Thread
Standards and Specifications:
ASME B18.3
System of Measurement:
Inch
Product Class:
Externally Threaded Fasteners
Head Style:
Cylindrical Head
POS:
SO007-1428X38-000500,SO007-1428X38-000100
Drive Recess Width:
0.188"
Drive Recess Depth:
0.12"
specifications_document_url:
https://www.aspenfasteners.com/content/2D_PDF/product59/SO007-1428X38.PDF
Head Height, Overall (Maximum):
0.25"
Diameter (Minimum):
0.2435"
cad_3d_file_url:
https://3d.aspenfasteners.com/assets/obj/SO007-1428X38.zip
Diameter (Maximum):
0.25"
Drive Recess Size:
3/16"
Diameter (Dimension):
0.25"
Thread Length (Nominal):
0.375"
Head Diameter (Maximum):
0.375"
Head Diameter (Minimum):
0.354"
Head Height, Overall (Minimum):
0.244"
  • Description
    • Socket cap screws are precision fasteners often used in machine parts, die fixturing and clamping.
    • A cylindrically shaped socket head cap screw is considered the strongest of all head styles.
    • An internal hex socket drive is also known as an Allen drive.
    • Alloy steel fasteners are significantly stronger than standard low carbon steel fasteners.
    • In general, fine thread fasteners are about 10% stronger than coarse threads under static loading.
    DIMENSIONAL ATTRIBUTES
    • Diameter (Nominal): 1/4"
    • Thread Pitch: 28
    • Diameter (Dimension): 0.25"
    • Diameter (Minimum): 0.2435"
    • Diameter (Maximum): 0.25"
    • Length (Nominal): 3/8"
    • Thread Length (Nominal): 0.375"
    • Drive Recess Size: 3/16"
    • Drive Recess Width: 0.188"
    • Drive Recess Depth: 0.12"
    • Head Diameter (Minimum): 0.354"
    • Head Diameter (Maximum): 0.375"
    • Head Height, Overall (Minimum): 0.244"
    • Head Height, Overall (Maximum): 0.25"
    PRODUCT ATTRIBUTES
    • Category: Socket Head Cap Screws
    • System of Measurement: Inch
    • Brand: Aspen Fasteners
    • Head Style: Cylindrical Head
    • Drive Style: Hex Socket Drive
    • Pitch: Fine Thread
    • Thread Direction: Right-Hand Thread
    • Material: Steel
    • Material Grade: Alloy Steel
    • Material Processes: Heat Treated
    • Coating: Oxidized
    • Coating Color: Black
    • Origin: Made in U.S.A.
    • Standards and Specifications: ASME B18.3
  • 3D Product View

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