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1/4"-20 X 3/8" Hex Head Cap Screws Bolts, UNC Coarse Thread, Grade 5 Steel, Zinc, Made in U.S.A.

1/4"-20 X 3/8" Hex Head Cap Screws Bolts, UNC Coarse Thread, Grade 5 Steel, Zinc, Made in U.S.A.

PART NUMBER:
BO016-1420X38
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  • Hex cap screws are manufactured to tighter tolerances as compared to hex bolts.
  • The heads of grade 5 steel fasteners are typically marked with 3 raised radial lines.
  • The washer face under the head provides a precision bearing surface.
  • Grade 5 steel fasteners have a minimum tensile strength of 105,000 pounds per square inch.
  • The chamfered point improves engagement with a nut or pre-tapped hole.
DIMENSIONAL ATTRIBUTES
  • Diameter (Nominal): 1/4"
  • Thread Pitch: 20
  • Diameter (Dimension): 0.25"
  • Diameter (Minimum): 0.245"
  • Diameter (Maximum): 0.250"
  • Length (Nominal): 3/8"
  • Thread Length (Nominal): 0.375"
  • Across Flats (Basic): 7/16"
  • Across Flats (Minimum): 0.428"
  • Across Flats (Maximum): 0.438"
  • Head Height, Overall: 0.1563"
  • Head Height, Overall (Minimum): 0.150"
  • Head Height, Overall (Maximum): 0.163"
PRODUCT ATTRIBUTES
  • Category: Cap Screws
  • System of Measurement: Inch
  • Brand: Aspen Fasteners®
  • Head Style: Hex Head
  • Head Style Detail: Washer Face
  • Head Markings: Three radial lines 120 degrees apart and manufacturer ID
  • Drive Style: External Hex Drive
  • Pitch: UNC Coarse Thread
  • Thread Direction: Right-Hand Thread
  • Point: Chamfered Point
  • Material: Steel
  • Material Grade: Grade 5
  • Coating: Zinc Plated
  • Coating Color: Clear
  • Origin: Made in U.S.A.
  • Standards and Specifications: ASME B18.2.1 and SAE J429
Thread Length (Nominal):
0.375"
Coating Color:
Clear
Diameter (Minimum):
0.245"
POS:
BO016-1420X38-005000,BO016-1420X38-002500
Coating:
Zinc Plated
Across Flats (Minimum):
0.428"
Material Grade:
Grade 5
Diameter (Dimension):
0.25"
Thread Direction:
Right-Hand Thread
Category:
Cap Screws
Diameter (Maximum):
0.250"
Head Style:
Hex Head
Origin:
Made in U.S.A.
cad_3d_file_url:
https://3d.aspenfasteners.com/assets/obj/BO016-1420X38.zip
cad_3d_viewer_url:
https://3d.aspenfasteners.com/viewer/?cad_model=obj/BO016-1420X38
Length (Nominal):
3/8"
Brand:
Aspen Fasteners(r)
Across Flats (Maximum):
0.438"
Head Style Detail:
Washer Face
Diameter (Nominal):
1/4"
Head Height, Overall (Minimum):
0.150"
Point:
Chamfered Point
Head Markings:
Three radial lines 120 degrees apart and manufacturer ID
Shop by System of Measurement:
Inch
Standards and Specifications:
ASME B18.2.1 and SAE J429
Head Height, Overall:
0.1563"
Thread Pitch:
20
Shop by Material:
Steel
Pitch:
UNC Coarse Thread
Drive Style:
External Hex Drive
Product Class:
Externally Threaded Fasteners
Head Height, Overall (Maximum):
0.163"
Order:
Machine Thread Fasteners
Across Flats (Basic):
7/16"
Material:
Steel
specifications_document_url:
https://www.aspenfasteners.com/content/2D_PDF/product80/BO016-1420X38.PDF
System of Measurement:
Inch
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  • Description
    • Hex cap screws are manufactured to tighter tolerances as compared to hex bolts.
    • The heads of grade 5 steel fasteners are typically marked with 3 raised radial lines.
    • The washer face under the head provides a precision bearing surface.
    • Grade 5 steel fasteners have a minimum tensile strength of 105,000 pounds per square inch.
    • The chamfered point improves engagement with a nut or pre-tapped hole.
    DIMENSIONAL ATTRIBUTES
    • Diameter (Nominal): 1/4"
    • Thread Pitch: 20
    • Diameter (Dimension): 0.25"
    • Diameter (Minimum): 0.245"
    • Diameter (Maximum): 0.250"
    • Length (Nominal): 3/8"
    • Thread Length (Nominal): 0.375"
    • Across Flats (Basic): 7/16"
    • Across Flats (Minimum): 0.428"
    • Across Flats (Maximum): 0.438"
    • Head Height, Overall: 0.1563"
    • Head Height, Overall (Minimum): 0.150"
    • Head Height, Overall (Maximum): 0.163"
    PRODUCT ATTRIBUTES
    • Category: Cap Screws
    • System of Measurement: Inch
    • Brand: Aspen Fasteners®
    • Head Style: Hex Head
    • Head Style Detail: Washer Face
    • Head Markings: Three radial lines 120 degrees apart and manufacturer ID
    • Drive Style: External Hex Drive
    • Pitch: UNC Coarse Thread
    • Thread Direction: Right-Hand Thread
    • Point: Chamfered Point
    • Material: Steel
    • Material Grade: Grade 5
    • Coating: Zinc Plated
    • Coating Color: Clear
    • Origin: Made in U.S.A.
    • Standards and Specifications: ASME B18.2.1 and SAE J429
  • 3D Product View

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