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5/16"-18 X 1" SEMS External Tooth Washer Machine Screws, Hex Washer, Steel, Zinc Plated and Baked

5/16"-18 X 1" SEMS External Tooth Washer Machine Screws, Hex Washer, Steel, Zinc Plated and Baked

PART NUMBER:
SC218-51618X1-001250
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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): 5/16"
  • Thread Pitch: 18
  • Diameter (Dimension): 0.3125"
  • Length (Nominal): 1"
  • Thread Length (Nominal): 1.000"
  • Outside Diameter (Minimum): 0.640"
  • Outside Diameter (Maximum): 0.654"
  • Thickness (Minimum): 0.028"
  • Thickness (Maximum): 0.034"
  • Across Flats (Minimum): 0.489"
  • Across Flats (Maximum): 0.500"
  • Head Height, Overall (Minimum): 0.208"
  • Head Height, Overall (Maximum): 0.230"
  • Flange Diameter (Minimum): 0.035"
  • Flange Diameter (Maximum): 0.055"
  • Flange Thickness (Minimum): 0.624"
  • Flange Thickness (Maximum): 0.676"
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:
692559732763
Thread Direction:
Right-Hand Thread
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
Thread Length:
Full Thread
Product Class:
Externally Threaded Fasteners
Shop by Material:
Steel
Shop by System of Measurement:
Inch
Drive Style:
External Hex Drive
Length (Nominal):
1"
Thread Pitch:
18
Diameter (Dimension):
0.3125"
Diameter (Nominal):
5/16"
Standards and Specifications:
ASME B18.13a and SAE J82
Brand:
Aspen Fasteners
System of Measurement:
Inch
Category:
Machine Screws
Order:
Machine Thread Fasteners
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/SC218-51618X1
POS:
SC218-51618X1-001250
specifications_document_url:
https://www.aspenfasteners.com/content/2D_PDF/product44/SC218-51618X1.PDF
cad_3d_file_url:
https://3d.aspenfasteners.com/assets/obj/SC218-51618X1.zip
Flange Diameter (Maximum):
0.055"
Across Flats (Maximum):
0.500"
Head Height, Overall (Maximum):
0.230"
Flange Diameter (Minimum):
0.035"
Across Flats (Minimum):
0.489"
Thickness (Maximum):
0.034"
Outside Diameter (Minimum):
0.640"
Flange Thickness (Minimum):
0.624"
Head Height, Overall (Minimum):
0.208"
Thickness (Minimum):
0.028"
Outside Diameter (Maximum):
0.654"
Thread Length (Nominal):
1.000"
Flange Thickness (Maximum):
0.676"
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): 5/16"
    • Thread Pitch: 18
    • Diameter (Dimension): 0.3125"
    • Length (Nominal): 1"
    • Thread Length (Nominal): 1.000"
    • Outside Diameter (Minimum): 0.640"
    • Outside Diameter (Maximum): 0.654"
    • Thickness (Minimum): 0.028"
    • Thickness (Maximum): 0.034"
    • Across Flats (Minimum): 0.489"
    • Across Flats (Maximum): 0.500"
    • Head Height, Overall (Minimum): 0.208"
    • Head Height, Overall (Maximum): 0.230"
    • Flange Diameter (Minimum): 0.035"
    • Flange Diameter (Maximum): 0.055"
    • Flange Thickness (Minimum): 0.624"
    • Flange Thickness (Maximum): 0.676"
    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:
    692559732763
  • 3D Product View

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