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5/16"-18 X 3-1/2" Hex Socket Head Cap Screws, Part Thread, UNC Coarse Thread, Alloy Steel, Zinc

5/16"-18 X 3-1/2" Hex Socket Head Cap Screws, Part Thread, UNC Coarse Thread, Alloy Steel, Zinc

PART NUMBER:
SO094-51618X312-000300
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  • Socket cap screws are precision fasteners often used in machine parts, die fixturing and clamping.
  • A cylindrically shaped socket head cap screw is considered the strongest of all head styles.
  • An internal hex socket drive is also known as an Allen drive.
  • Alloy steel fasteners are significantly stronger than standard low carbon steel fasteners.
  • Mechanical zinc plating is also known as peen plating, mechanical deposition, or impact plating.
  • Mechanical zinc is similar to zinc electroplating but eliminates the risk of hydrogen embrittlement.
DIMENSIONAL ATTRIBUTES
  • Diameter (Nominal): 5/16"
  • Thread Pitch: 18
  • Diameter (Dimension): 0.3125"
  • Diameter (Minimum): 0.3053"
  • Diameter (Maximum): 0.3125"
  • Length (Nominal): 3-1/2"
  • Thread Length (Nominal): 1.375"
  • Drive Recess Size: 1/4"
  • Drive Recess Width: 0.25"
  • Drive Recess Depth: 0.151"
  • Head Diameter: 0.469"
  • Head Diameter (Minimum): 0.446"
  • Head Diameter (Maximum): 0.469"
  • Head Height, Overall: 0.312"
  • Head Height, Overall (Minimum): 0.306"
  • Head Height, Overall (Maximum): 0.312"
PRODUCT ATTRIBUTES
  • Category: Socket Head Cap Screws
  • System of Measurement: Inch
  • Brand: Aspen Fasteners
  • Head Style: Cylindrical Head
  • Drive Style: Hex Socket Drive
  • Pitch: UNC Coarse Thread
  • Thread Length: Part Thread
  • Thread Direction: Right-Hand Thread
  • Material: Steel
  • Material Grade: Alloy Steel
  • Material Processes: Heat Treated
  • Coating: Mechanically Zinc Plated
  • Coating Color: Clear
  • Coating Standard: Type 2 Mechanical Zinc 0.0002" Cr+3 RoHS
  • Origin: Origin Undefined
  • Standards and Specifications: ASTM B695-2000
Product UPC Code:
698435935044
Thread Length:
Part Thread
Shop by System of Measurement:
Inch
Pitch:
UNC Coarse Thread
Head Style:
Cylindrical Head
Brand:
Aspen Fasteners
System of Measurement:
Inch
Category:
Socket Head Cap Screws
Order:
Machine Thread Fasteners
Product Class:
Externally Threaded Fasteners
Shop by Application:
Socket Products
Shop by Material:
Steel
Coating Standard:
Type 2 Mechanical Zinc 0.0002" Cr+3 RoHS
Coating:
Mechanically Zinc Plated
Material Processes:
Heat Treated
Material Grade:
Alloy Steel
Drive Style:
Hex Socket Drive
Standards and Specifications:
ASTM B695-2000
Diameter (Nominal):
5/16"
Diameter (Dimension):
0.3125"
Thread Pitch:
18
Length (Nominal):
3-1/2"
Head Diameter:
0.469"
Coating Color:
Clear
Head Height, Overall:
0.312"
Material:
Steel
Thread Direction:
Right-Hand Thread
POS:
SO094-51618X312-000300,SO094-51618X312X1375X-000150
Thread Length (Nominal):
1.375"
Diameter (Maximum):
0.3125"
Head Height, Overall (Maximum):
0.312"
Head Diameter (Minimum):
0.446"
Drive Recess Depth:
0.151"
cad_3d_viewer_url:
https://3d.aspenfasteners.com/viewer/?cad_model=obj/SO094-51618X312
Diameter (Minimum):
0.3053"
Drive Recess Size:
1/4"
cad_3d_file_url:
https://3d.aspenfasteners.com/assets/obj/SO094-51618X312.zip
Head Diameter (Maximum):
0.469"
Drive Recess Width:
0.25"
Origin:
Origin Undefined
Head Height, Overall (Minimum):
0.306"
specifications_document_url:
https://www.aspenfasteners.com/content/2D_PDF/product91/SO094-51618X312.PDF
Print
  • Description
    • Socket cap screws are precision fasteners often used in machine parts, die fixturing and clamping.
    • A cylindrically shaped socket head cap screw is considered the strongest of all head styles.
    • An internal hex socket drive is also known as an Allen drive.
    • Alloy steel fasteners are significantly stronger than standard low carbon steel fasteners.
    • Mechanical zinc plating is also known as peen plating, mechanical deposition, or impact plating.
    • Mechanical zinc is similar to zinc electroplating but eliminates the risk of hydrogen embrittlement.
    DIMENSIONAL ATTRIBUTES
    • Diameter (Nominal): 5/16"
    • Thread Pitch: 18
    • Diameter (Dimension): 0.3125"
    • Diameter (Minimum): 0.3053"
    • Diameter (Maximum): 0.3125"
    • Length (Nominal): 3-1/2"
    • Thread Length (Nominal): 1.375"
    • Drive Recess Size: 1/4"
    • Drive Recess Width: 0.25"
    • Drive Recess Depth: 0.151"
    • Head Diameter: 0.469"
    • Head Diameter (Minimum): 0.446"
    • Head Diameter (Maximum): 0.469"
    • Head Height, Overall: 0.312"
    • Head Height, Overall (Minimum): 0.306"
    • Head Height, Overall (Maximum): 0.312"
    PRODUCT ATTRIBUTES
    • Category: Socket Head Cap Screws
    • System of Measurement: Inch
    • Brand: Aspen Fasteners
    • Head Style: Cylindrical Head
    • Drive Style: Hex Socket Drive
    • Pitch: UNC Coarse Thread
    • Thread Length: Part Thread
    • Thread Direction: Right-Hand Thread
    • Material: Steel
    • Material Grade: Alloy Steel
    • Material Processes: Heat Treated
    • Coating: Mechanically Zinc Plated
    • Coating Color: Clear
    • Coating Standard: Type 2 Mechanical Zinc 0.0002" Cr+3 RoHS
    • Origin: Origin Undefined
    • Standards and Specifications: ASTM B695-2000
    Product UPC Code:
    698435935044
  • 3D Product View

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