M20-2.5 DIN 979, Metric, Slotted Castle Thin Nuts, A4 Stainless Steel

PART NUMBER:
ME577-2025X16X30-000025
Free Shipping Free ground shipping to the 48 contiguous US states.
Normal delivery time 2-3 days.
For more information, visit our Shipping and Deliveries page.
(No reviews yet) Write a Review
PACK QUANTITY PRICE PER PACK Availability SELECT NUMBER OF PACKS Add to cart
question By saving items to your Saved Items lists, you can quickly and easily organize and retrieve the parts that are important to you. Your can create and name as many lists as you require and add as many parts as you need to each of your lists.
  • Also known as castellated nuts. Functionally interchangeable with slotted nuts.
  • On castle nuts, the turret end is turned down enabling the lock pin to be wound against the turret.
  • Lock the nut to a mated bolt by using a pin or wire threaded through the bolt and slots on the nut.
  • A4 stainless steel is functionally equivalent to 316 grade and is also known as "marine grade".
  • Stainless steel significantly improves resistance to tarnishing or corrosion.
  • Diameter (Nominal): M20
  • Thread Pitch: 2.5
  • Diameter (Dimension): 20mm
  • Thread Length: 16mm
  • Across Flats (Basic): 30mm
  • Across Flats (Minimum): 29.16mm
  • Across Flats (Maximum): 30mm
  • Height (Basic): 16mm
  • Height (Minimum): 15.3mm
  • Height (Maximum): 16mm
  • Slot Depth (Nominal): 6mm
  • Slot Depth (Minimum): 5.3mm
  • Slot Depth (Maximum): 6.36mm
  • Slot Width (Minimum): 4.5mm
  • Slot Width (Maximum): 4.8mm
  • Product Class: Internally Threaded Fasteners
  • Order: Nuts
  • Category: Slotted Castle Thin Nuts
  • System of Measurement: Metric
  • Brand: Aspen Fasteners®
  • Form and Design: Chamfered One Side
  • Drive Style: External Hex Drive
  • Thread Length: Full Thread
  • Thread Direction: Right-Hand Thread
  • Material: Stainless Steel
  • Material Grade: A4 Stainless Steel
  • Coating: Uncoated
  • Standards and Specifications: DIN 979
Product UPC Code:
692559698663
Material:
Stainless Steel
Height (Basic):
16mm
Coating:
Uncoated
Slot Depth (Maximum):
6.36mm
Slot Depth (Minimum):
5.3mm
Diameter (Nominal):
M20
Thread Length:
Full Thread
Shop by Material:
Stainless Steel
Form and Design:
Chamfered One Side
Across Flats (Maximum):
30mm
Across Flats (Minimum):
29.16mm
Height (Minimum):
15.3mm
Product Class:
Internally Threaded Fasteners
Diameter (Dimension):
20mm
Brand:
Aspen Fasteners
Across Flats (Basic):
30mm
Thread Length:
16mm
Slot Depth (Nominal):
6mm
Thread Pitch:
2.5
Slot Width (Maximum):
4.8mm
Drive Style:
External Hex Drive
Material Grade:
A4 Stainless Steel
Shop by System of Measurement:
Metric
Slot Width (Minimum):
4.5mm
Standards and Specifications:
DIN 979
Order:
Nuts
Height (Maximum):
16mm
Thread Direction:
Right-Hand Thread
System of Measurement:
Metric
Category:
Slotted Castle Thin Nuts
  • Description
    • Also known as castellated nuts. Functionally interchangeable with slotted nuts.
    • On castle nuts, the turret end is turned down enabling the lock pin to be wound against the turret.
    • Lock the nut to a mated bolt by using a pin or wire threaded through the bolt and slots on the nut.
    • A4 stainless steel is functionally equivalent to 316 grade and is also known as "marine grade".
    • Stainless steel significantly improves resistance to tarnishing or corrosion.
    • Diameter (Nominal): M20
    • Thread Pitch: 2.5
    • Diameter (Dimension): 20mm
    • Thread Length: 16mm
    • Across Flats (Basic): 30mm
    • Across Flats (Minimum): 29.16mm
    • Across Flats (Maximum): 30mm
    • Height (Basic): 16mm
    • Height (Minimum): 15.3mm
    • Height (Maximum): 16mm
    • Slot Depth (Nominal): 6mm
    • Slot Depth (Minimum): 5.3mm
    • Slot Depth (Maximum): 6.36mm
    • Slot Width (Minimum): 4.5mm
    • Slot Width (Maximum): 4.8mm
    • Product Class: Internally Threaded Fasteners
    • Order: Nuts
    • Category: Slotted Castle Thin Nuts
    • System of Measurement: Metric
    • Brand: Aspen Fasteners®
    • Form and Design: Chamfered One Side
    • Drive Style: External Hex Drive
    • Thread Length: Full Thread
    • Thread Direction: Right-Hand Thread
    • Material: Stainless Steel
    • Material Grade: A4 Stainless Steel
    • Coating: Uncoated
    • Standards and Specifications: DIN 979
    Product UPC Code:
    692559698663

Contact us for availability information on part number ME577-2025X16X30-000025. Please chat with us, call us, e-mail us, or use the form below. Our customer support team will find the best delivery options for you.

x