5/16"-18 X 7/8" Hex Head Cap Screws Bolts, UNC Coarse Thread, Grade 2 Steel, Plain

PART NUMBER:
BO050-51618X78-001800
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  • Hex cap screws are manufactured to tighter tolerances as compared to hex bolts.
  • Grade 2 steel is a standard "industrial spec" low carbon grade of steel.
  • The washer face under the head provides a precision bearing surface.
  • Grade 2 steel fasteners have a minimum tensile strength of 60,000 pounds per square inch.
  • The chamfered point improves engagement with a nut or pre-tapped hole.
DIMENSIONAL ATTRIBUTES
  • Diameter (Nominal): 5/16"
  • Thread Pitch: 18
  • Diameter (Dimension): 0.3125"
  • Diameter (Minimum): 0.3065"
  • Diameter (Maximum): 0.3125"
  • Length (Nominal): 7/8"
  • Thread Length (Nominal): 0.875"
  • Across Flats (Basic): 1/2"
  • Across Flats (Minimum): 0.489"
  • Across Flats (Maximum): 0.500"
  • Head Height, Overall: 0.2031"
  • Head Height, Overall (Minimum): 0.195"
  • Head Height, Overall (Maximum): 0.211"
PRODUCT ATTRIBUTES
  • Category: Cap Screws
  • System of Measurement: Inch
  • Brand: Aspen Fasteners®
  • Head Style: Hex Head
  • Head Style Detail: Washer Face
  • Drive Style: External Hex Drive
  • Pitch: UNC Coarse Thread
  • Thread Direction: Right-Hand Thread
  • Point: Chamfered Point
  • Material: Steel
  • Material Grade: Grade 2
  • Coating: Uncoated
  • Standards and Specifications: ASME B18.2.1 and SAE J429
Product UPC Code:
698435045569
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Across Flats (Basic):
1/2"
Across Flats (Maximum):
0.500"
Across Flats (Minimum):
0.489"
Brand:
Aspen Fasteners(r)
Category:
Cap Screws
Coating:
Uncoated
Diameter (Dimension):
0.3125"
Diameter (Maximum):
0.3125"
Diameter (Minimum):
0.3065"
Diameter (Nominal):
5/16"
Drive Style:
External Hex Drive
Head Height, Overall:
0.2031"
Head Height, Overall (Maximum):
0.211"
Head Height, Overall (Minimum):
0.195"
Head Style:
Hex Head
Head Style Detail:
Washer Face
Length (Nominal):
7/8"
Material:
Steel
Material Grade:
Grade 2
Order:
Machine Thread Fasteners
POS:
BO050-51618X78-001800
Pitch:
UNC Coarse Thread
Point:
Chamfered Point
Product Class:
Externally Threaded Fasteners
Standards and Specifications:
ASME B18.2.1 and SAE J429
System of Measurement:
Inch
Thread Direction:
Right-Hand Thread
Thread Length (Nominal):
0.875"
Thread Pitch:
18
cad_3d_viewer_url:
https://3d.aspenfasteners.com/viewer/?cad_model=obj/BO050-51618X78
specifications_document_url:
https://www.aspenfasteners.com/content/2D_PDF/product81/BO050-51618X78.PDF
Shop by Material:
Steel
Shop by System of Measurement:
Inch
  • Description
    • Hex cap screws are manufactured to tighter tolerances as compared to hex bolts.
    • Grade 2 steel is a standard "industrial spec" low carbon grade of steel.
    • The washer face under the head provides a precision bearing surface.
    • Grade 2 steel fasteners have a minimum tensile strength of 60,000 pounds per square inch.
    • The chamfered point improves engagement with a nut or pre-tapped hole.
    DIMENSIONAL ATTRIBUTES
    • Diameter (Nominal): 5/16"
    • Thread Pitch: 18
    • Diameter (Dimension): 0.3125"
    • Diameter (Minimum): 0.3065"
    • Diameter (Maximum): 0.3125"
    • Length (Nominal): 7/8"
    • Thread Length (Nominal): 0.875"
    • Across Flats (Basic): 1/2"
    • Across Flats (Minimum): 0.489"
    • Across Flats (Maximum): 0.500"
    • Head Height, Overall: 0.2031"
    • Head Height, Overall (Minimum): 0.195"
    • Head Height, Overall (Maximum): 0.211"
    PRODUCT ATTRIBUTES
    • Category: Cap Screws
    • System of Measurement: Inch
    • Brand: Aspen Fasteners®
    • Head Style: Hex Head
    • Head Style Detail: Washer Face
    • Drive Style: External Hex Drive
    • Pitch: UNC Coarse Thread
    • Thread Direction: Right-Hand Thread
    • Point: Chamfered Point
    • Material: Steel
    • Material Grade: Grade 2
    • Coating: Uncoated
    • Standards and Specifications: ASME B18.2.1 and SAE J429
    Product UPC Code:
    698435045569

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