M20-2.5 X 80mm DIN 479, Metric, Set Screws, Square Head, Class 8.8 Steel, Plain

PART NUMBER:
ME408-2025X80
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  • Holds an object in place via friction between the point of the screw and the fastened material.
  • While similar to set screws with a hex recess drive, the square head allows for a wrench to be used.
  • Square head set screws are also known as grub screws.
  • Class 8.8 steel is a tempered medium carbon steel with a minimum tensile strength of 800/mm-2 (Mpa).
  • Set screws are designed to be used under compressive stress only.
DIMENSIONAL ATTRIBUTES
  • Diameter (Nominal): M20
  • Thread Pitch: 2.5
  • Diameter (Dimension): 20mm
  • Length (Nominal): 80mm
  • Thread Length (Nominal): 80mm
  • Across Flats (Basic): 22mm
  • Across Flats (Minimum): 21.67mm
  • Across Flats (Maximum): 22mm
  • Head Height, Overall: 20mm
  • Head Height, Overall (Minimum): 19.74mm
  • Head Height, Overall (Maximum): 20.26mm
  • Point Length: 5mm
  • Point Length (Minimum): 5mm
  • Point Length (Maximum): 5.3mm
  • Point Width: 15mm
  • Point Width (Minimum): 14.73mm
  • Point Width (Maximum): 15mm
PRODUCT ATTRIBUTES
  • Category: Set Screws
  • System of Measurement: Metric
  • Brand: Aspen Fasteners®
  • Head Style: Square Head
  • Drive Style: External Square Drive
  • Thread Length: Full Thread
  • Thread Direction: Right-Hand Thread
  • Point: Half-Dog Point
  • Material: Steel
  • Material Grade: Class 8.8 Steel
  • Coating: Uncoated
  • Standards and Specifications: DIN 479
Shop by Material:
Steel
Point Width (Minimum):
14.73mm
Point Width:
15mm
Point Length (Maximum):
5.3mm
Point Length (Minimum):
5mm
Point Length:
5mm
Head Height, Overall (Maximum):
20.26mm
Head Height, Overall (Minimum):
19.74mm
Head Height, Overall:
20mm
Across Flats (Maximum):
22mm
Across Flats (Minimum):
21.67mm
Across Flats (Basic):
22mm
Thread Length (Nominal):
80mm
Length (Nominal):
80mm
Thread Pitch:
2.5
Diameter (Dimension):
20mm
Diameter (Nominal):
M20
Standards and Specifications:
DIN 479
Coating:
Uncoated
Material Grade:
Class 8.8 Steel
Material:
Steel
Point:
Half-Dog Point
Thread Direction:
Right-Hand Thread
Thread Length:
Full Thread
Drive Style:
External Square Drive
Head Style:
Square Head
Brand:
Aspen Fasteners
System of Measurement:
Metric
Category:
Set Screws
Order:
Machine Thread Fasteners
Product Class:
Externally Threaded Fasteners
Point Width (Maximum):
15mm
Shop by System of Measurement:
Metric
  • Description
    • Holds an object in place via friction between the point of the screw and the fastened material.
    • While similar to set screws with a hex recess drive, the square head allows for a wrench to be used.
    • Square head set screws are also known as grub screws.
    • Class 8.8 steel is a tempered medium carbon steel with a minimum tensile strength of 800/mm-2 (Mpa).
    • Set screws are designed to be used under compressive stress only.
    DIMENSIONAL ATTRIBUTES
    • Diameter (Nominal): M20
    • Thread Pitch: 2.5
    • Diameter (Dimension): 20mm
    • Length (Nominal): 80mm
    • Thread Length (Nominal): 80mm
    • Across Flats (Basic): 22mm
    • Across Flats (Minimum): 21.67mm
    • Across Flats (Maximum): 22mm
    • Head Height, Overall: 20mm
    • Head Height, Overall (Minimum): 19.74mm
    • Head Height, Overall (Maximum): 20.26mm
    • Point Length: 5mm
    • Point Length (Minimum): 5mm
    • Point Length (Maximum): 5.3mm
    • Point Width: 15mm
    • Point Width (Minimum): 14.73mm
    • Point Width (Maximum): 15mm
    PRODUCT ATTRIBUTES
    • Category: Set Screws
    • System of Measurement: Metric
    • Brand: Aspen Fasteners®
    • Head Style: Square Head
    • Drive Style: External Square Drive
    • Thread Length: Full Thread
    • Thread Direction: Right-Hand Thread
    • Point: Half-Dog Point
    • Material: Steel
    • Material Grade: Class 8.8 Steel
    • Coating: Uncoated
    • Standards and Specifications: DIN 479

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