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1/4"-20 X 1/2" SEMS Internal Tooth Washer Machine Screws, Pan Slot Drive, Steel, Zinc Plated and Baked

1/4"-20 X 1/2" SEMS Internal Tooth Washer Machine Screws, Pan Slot Drive, Steel, Zinc Plated and Baked

PART NUMBER:
SC230-1420X12-002000
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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): 1/2"
  • Thread Length (Nominal): 0.500"
  • Outside Diameter (Minimum): 0.466"
  • Outside Diameter (Maximum): 0.478"
  • Thickness (Minimum): 0.023"
  • Thickness (Maximum): 0.028"
  • Head Diameter (Minimum): 0.473"
  • Head Diameter (Maximum): 0.492"
  • Head Height, Overall (Minimum): 0.130"
  • Head Height, Overall (Maximum): 0.144"
  • Fillet Radius: 0.087"
  • Slot Depth (Minimum): 0.064"
  • Slot Depth (Maximum): 0.075"
  • Slot Width (Minimum): 0.070"
  • Slot Width (Maximum): 0.087"
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: Pan Head
  • Head Style Detail: Free-Spinning Internal Tooth Lock Washer
  • Drive Style: Slotted 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:
698435374867
Thread Direction:
Right-Hand Thread
Material:
Steel
Coating:
Zinc Plated and Baked
Coating Color:
Clear
Standards and Specifications:
ASME B18.13a and SAE J82
Diameter (Nominal):
1/4"
Diameter (Dimension):
0.250"
Thread Pitch:
20
Length (Nominal):
1/2"
Head Style Detail:
Free-Spinning Internal Tooth Lock Washer
System of Measurement:
Inch
Drive Style:
Slotted Drive
Thread Length:
Full Thread
Head Style:
Pan Head
Form and Design:
SEMS Screws Pre-Assembled with a Captive Lock Washer
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
Origin:
Origin Undefined
cad_3d_viewer_url:
https://3d.aspenfasteners.com/viewer/?cad_model=obj/SC230-1420X12
POS:
SC230-1420X12-002000
cad_3d_file_url:
https://3d.aspenfasteners.com/assets/obj/SC230-1420X12.zip
specifications_document_url:
https://www.aspenfasteners.com/content/2D_PDF/product44/SC230-1420X12.PDF
Thickness (Minimum):
0.023"
Head Height, Overall (Minimum):
0.130"
Outside Diameter (Maximum):
0.478"
Slot Depth (Maximum):
0.075"
Head Diameter (Minimum):
0.473"
Slot Depth (Minimum):
0.064"
Slot Width (Maximum):
0.087"
Thread Length (Nominal):
0.500"
Slot Width (Minimum):
0.070"
Head Height, Overall (Maximum):
0.144"
Outside Diameter (Minimum):
0.466"
Head Diameter (Maximum):
0.492"
Thickness (Maximum):
0.028"
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): 1/2"
    • Thread Length (Nominal): 0.500"
    • Outside Diameter (Minimum): 0.466"
    • Outside Diameter (Maximum): 0.478"
    • Thickness (Minimum): 0.023"
    • Thickness (Maximum): 0.028"
    • Head Diameter (Minimum): 0.473"
    • Head Diameter (Maximum): 0.492"
    • Head Height, Overall (Minimum): 0.130"
    • Head Height, Overall (Maximum): 0.144"
    • Fillet Radius: 0.087"
    • Slot Depth (Minimum): 0.064"
    • Slot Depth (Maximum): 0.075"
    • Slot Width (Minimum): 0.070"
    • Slot Width (Maximum): 0.087"
    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: Pan Head
    • Head Style Detail: Free-Spinning Internal Tooth Lock Washer
    • Drive Style: Slotted 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:
    698435374867
  • 3D Product View

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