1"-8 X 3" Hex Head Cap Screws Bolts, UNC Coarse Thread, Grade 5 Steel, Zinc

PART NUMBER:
BO051-18X3-000050
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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"
  • Thread Pitch: 8
  • Diameter (Dimension): 1"
  • Diameter (Minimum): 0.990"
  • Diameter (Maximum): 1.000"
  • Length (Nominal): 3"
  • Thread Length (Nominal): 2.25"
  • Across Flats (Basic): 1-1/2"
  • Across Flats (Minimum): 1.469"
  • Across Flats (Maximum): 1.500"
  • Head Height, Overall: 39/64"
  • Head Height, Overall (Minimum): 0.591"
  • Head Height, Overall (Maximum): 0.627"
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
  • Standards and Specifications: ASME B18.2.1 and SAE J429
Product UPC Code:
698435048720
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Across Flats (Basic):
1-1/2"
Across Flats (Maximum):
1.500"
Across Flats (Minimum):
1.469"
Brand:
Aspen Fasteners(r)
Category:
Cap Screws
Coating:
Zinc Plated
Coating Color:
Clear
Diameter (Dimension):
1"
Diameter (Maximum):
1.000"
Diameter (Minimum):
0.990"
Diameter (Nominal):
1"
Drive Style:
External Hex Drive
Head Height, Overall:
39/64"
Head Height, Overall (Maximum):
0.627"
Head Height, Overall (Minimum):
0.591"
Head Markings:
Three radial lines 120 degrees apart and manufacturer ID
Head Style:
Hex Head
Head Style Detail:
Washer Face
Length (Nominal):
3"
Material:
Steel
Material Grade:
Grade 5
Order:
Machine Thread Fasteners
POS:
BO051-18X3-000050
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):
2.25"
Thread Pitch:
8
cad_3d_viewer_url:
https://3d.aspenfasteners.com/viewer/?cad_model=obj/BO051-18X3
specifications_document_url:
https://www.aspenfasteners.com/content/2D_PDF/product81/BO051-18X3.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.
    • 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"
    • Thread Pitch: 8
    • Diameter (Dimension): 1"
    • Diameter (Minimum): 0.990"
    • Diameter (Maximum): 1.000"
    • Length (Nominal): 3"
    • Thread Length (Nominal): 2.25"
    • Across Flats (Basic): 1-1/2"
    • Across Flats (Minimum): 1.469"
    • Across Flats (Maximum): 1.500"
    • Head Height, Overall: 39/64"
    • Head Height, Overall (Minimum): 0.591"
    • Head Height, Overall (Maximum): 0.627"
    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
    • Standards and Specifications: ASME B18.2.1 and SAE J429
    Product UPC Code:
    698435048720

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