M20-2.5 DIN 1587, Metric, Acorn Cap Dome Nuts, A2 Stainless Steel

PART NUMBER:
ME277-2025
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  • Nuts with a domed end on one side are also known as crown nuts, blind nuts, cap nuts or dome nuts.
  • Manufactured from two pieces, the nut and the cap, and then pressed together.
  • A2 stainless steel is functionally equivalent to 304 grade, also known as 18-8 stainless steel.
  • Stainless steel significantly improves resistance to tarnishing or corrosion.
DIMENSIONAL ATTRIBUTES
  • Diameter (Nominal): M20
  • Thread Pitch: 2.5
  • Diameter (Dimension): 20mm
  • Thread Length (Nominal): 16mm
  • Outside Diameter (Nominal): 28mm
  • Across Flats (Basic): 30mm
  • Height (Basic): 34mm
PRODUCT ATTRIBUTES
  • Category: Acorn Cap Dome Nuts
  • System of Measurement: Metric
  • Brand: Aspen Fasteners®
  • Form and Design: High Type
  • Drive Style: External Hex Drive
  • Thread Length: Full Thread
  • Thread Direction: Right-Hand Thread
  • Material: Stainless Steel
  • Material Grade: A2 Stainless Steel
  • Material Processes: Two-Piece Assembly
  • Coating: Uncoated
  • Standards and Specifications: DIN 1587
System of Measurement:
Metric
Outside Diameter (Nominal):
28mm
POS:
ME277-2025-00007,ME277-2025X34X30-000025
Material Grade:
A2 Stainless Steel
Diameter (Nominal):
M20
Brand:
Aspen Fasteners(r)
Category:
Acorn Cap Dome Nuts
Shop by Material:
Stainless Steel
Thread Length (Nominal):
16mm
Product Class:
Internally Threaded Fasteners
Thread Direction:
Right-Hand Thread
Thread Pitch:
2.5
Drive Style:
External Hex Drive
Thread Length:
Full Thread
Coating:
Uncoated
Form and Design:
High Type
Shop by System of Measurement:
Metric
specifications_document_url:
https://www.aspenfasteners.com/content/2D_PDF/product93/ME277-2025.PDF
Height (Basic):
34mm
Material Processes:
Two-Piece Assembly
Material:
Stainless Steel
Diameter (Dimension):
20mm
Order:
Nuts
Standards and Specifications:
DIN 1587
cad_3d_file_url:
https://3d.aspenfasteners.com/assets/obj/ME277-2025.zip
Across Flats (Basic):
30mm
  • Description
    • Nuts with a domed end on one side are also known as crown nuts, blind nuts, cap nuts or dome nuts.
    • Manufactured from two pieces, the nut and the cap, and then pressed together.
    • A2 stainless steel is functionally equivalent to 304 grade, also known as 18-8 stainless steel.
    • Stainless steel significantly improves resistance to tarnishing or corrosion.
    DIMENSIONAL ATTRIBUTES
    • Diameter (Nominal): M20
    • Thread Pitch: 2.5
    • Diameter (Dimension): 20mm
    • Thread Length (Nominal): 16mm
    • Outside Diameter (Nominal): 28mm
    • Across Flats (Basic): 30mm
    • Height (Basic): 34mm
    PRODUCT ATTRIBUTES
    • Category: Acorn Cap Dome Nuts
    • System of Measurement: Metric
    • Brand: Aspen Fasteners®
    • Form and Design: High Type
    • Drive Style: External Hex Drive
    • Thread Length: Full Thread
    • Thread Direction: Right-Hand Thread
    • Material: Stainless Steel
    • Material Grade: A2 Stainless Steel
    • Material Processes: Two-Piece Assembly
    • Coating: Uncoated
    • Standards and Specifications: DIN 1587

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