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1/4"-20 X 5/8" SEMS External Tooth Washer Machine Screws, Hex Washer, Steel, Zinc Plated and Baked

1/4"-20 X 5/8" SEMS External Tooth Washer Machine Screws, Hex Washer, Steel, Zinc Plated and Baked

PART NUMBER:
SC218-1420X58-003000
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  • Machine screws are designed for applications with a pre-tapped hole or mated to a threaded nut.
  • SEMS screws come pre-assembled with permanently installed free-spinning lock washer.
DIMENSIONAL ATTRIBUTES
  • Diameter (Nominal): 1/4"
  • Thread Pitch: 20
  • Diameter (Dimension): 0.250"
  • Length (Nominal): 5/8"
  • Thread Length (Nominal): 0.625"
  • Outside Diameter (Minimum): 0.567"
  • Outside Diameter (Maximum): 0.580"
  • Thickness (Minimum): 0.023"
  • Thickness (Maximum): 0.028"
  • Across Flats (Minimum): 0.367"
  • Across Flats (Maximum): 0.375"
  • Head Height, Overall (Minimum): 0.172"
  • Head Height, Overall (Maximum): 0.190"
  • Flange Diameter (Minimum): 0.030"
  • Flange Diameter (Maximum): 0.050"
  • Flange Thickness (Minimum): 0.480"
  • Flange Thickness (Maximum): 0.520"
PRODUCT ATTRIBUTES
  • Category: Machine Screws
  • System of Measurement: Inch
  • Brand: Aspen Fasteners
  • Form and Design: SEMS Screws Pre-Assembled with a Captive Lock Washer
  • Head Style: Hex Washer Head
  • Head Style Detail: Free-Spinning External Tooth Lock Washer
  • Drive Style: External Hex Drive
  • Thread Length: Full Thread
  • Thread Direction: Right-Hand Thread
  • Material: Steel
  • Coating: Zinc Plated and Baked
  • Coating Color: Clear
  • Origin: Origin Undefined
  • Standards and Specifications: ASME B18.13a and SAE J82
Product UPC Code:
692559732732
Brand:
Aspen Fasteners
Shop by System of Measurement:
Inch
Shop by Material:
Steel
Product Class:
Externally Threaded Fasteners
Order:
Machine Thread Fasteners
Category:
Machine Screws
System of Measurement:
Inch
Form and Design:
SEMS Screws Pre-Assembled with a Captive Lock Washer
Thread Direction:
Right-Hand Thread
Thread Length:
Full Thread
Drive Style:
External Hex Drive
Head Style Detail:
Free-Spinning External Tooth Lock Washer
Head Style:
Hex Washer Head
Length (Nominal):
5/8"
Thread Pitch:
20
Diameter (Dimension):
0.250"
Diameter (Nominal):
1/4"
Standards and Specifications:
ASME B18.13a and SAE J82
Coating Color:
Clear
Coating:
Zinc Plated and Baked
Material:
Steel
Origin:
Origin Undefined
cad_3d_viewer_url:
https://3d.aspenfasteners.com/viewer/?cad_model=obj/SC218-1420X58
POS:
SC218-1420X58-003000
cad_3d_file_url:
https://3d.aspenfasteners.com/assets/obj/SC218-1420X58.zip
specifications_document_url:
https://www.aspenfasteners.com/content/2D_PDF/product44/SC218-1420X58.PDF
Outside Diameter (Maximum):
0.580"
Thickness (Minimum):
0.023"
Flange Thickness (Maximum):
0.520"
Across Flats (Minimum):
0.367"
Flange Diameter (Minimum):
0.030"
Across Flats (Maximum):
0.375"
Thickness (Maximum):
0.028"
Head Height, Overall (Maximum):
0.190"
Head Height, Overall (Minimum):
0.172"
Outside Diameter (Minimum):
0.567"
Thread Length (Nominal):
0.625"
Flange Diameter (Maximum):
0.050"
Flange Thickness (Minimum):
0.480"
Print
  • Description
    • Machine screws are designed for applications with a pre-tapped hole or mated to a threaded nut.
    • SEMS screws come pre-assembled with permanently installed free-spinning lock washer.
    DIMENSIONAL ATTRIBUTES
    • Diameter (Nominal): 1/4"
    • Thread Pitch: 20
    • Diameter (Dimension): 0.250"
    • Length (Nominal): 5/8"
    • Thread Length (Nominal): 0.625"
    • Outside Diameter (Minimum): 0.567"
    • Outside Diameter (Maximum): 0.580"
    • Thickness (Minimum): 0.023"
    • Thickness (Maximum): 0.028"
    • Across Flats (Minimum): 0.367"
    • Across Flats (Maximum): 0.375"
    • Head Height, Overall (Minimum): 0.172"
    • Head Height, Overall (Maximum): 0.190"
    • Flange Diameter (Minimum): 0.030"
    • Flange Diameter (Maximum): 0.050"
    • Flange Thickness (Minimum): 0.480"
    • Flange Thickness (Maximum): 0.520"
    PRODUCT ATTRIBUTES
    • Category: Machine Screws
    • System of Measurement: Inch
    • Brand: Aspen Fasteners
    • Form and Design: SEMS Screws Pre-Assembled with a Captive Lock Washer
    • Head Style: Hex Washer Head
    • Head Style Detail: Free-Spinning External Tooth Lock Washer
    • Drive Style: External Hex Drive
    • Thread Length: Full Thread
    • Thread Direction: Right-Hand Thread
    • Material: Steel
    • Coating: Zinc Plated and Baked
    • Coating Color: Clear
    • Origin: Origin Undefined
    • Standards and Specifications: ASME B18.13a and SAE J82
    Product UPC Code:
    692559732732
  • 3D Product View

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