- Jam nuts are also known as low form nuts or thin nuts.
- Jam nuts are about half the height of regular finished nuts.
- NOTE: Left-hand threads tighten counter-clockwise and are not the common fastener thread direction!
DIMENSIONAL ATTRIBUTES- Diameter (Nominal): M20
- Thread Pitch: 2.5
- Diameter (Dimension): 20mm
- Thread Length (Nominal): 10mm
- Across Flats (Basic): 30mm
- Across Flats (Minimum): 29.16mm
- Across Flats (Maximum): 30mm
- Height (Basic): 10mm
- Height (Minimum): 9.1mm
- Height (Maximum): 10mm
PRODUCT ATTRIBUTES- Category: Hex Jam Thin Nuts
- System of Measurement: Metric
- Brand: Aspen Fasteners®
- Form and Design: Double Chamfered
- Drive Style: External Hex Drive
- Thread Length: Full Thread
- Thread Direction: Left-Hand Thread
- Material: Steel
- Material Grade: Class 4 Steel
- Coating: Uncoated
- Standards and Specifications: DIN 439B
Product UPC Code:
698435216303
- Form and Design:
- Double Chamfered
- Thread Length (Nominal):
- 10mm
- System of Measurement:
- Metric
- Across Flats (Basic):
- 30mm
- Across Flats (Maximum):
- 30mm
- Standards and Specifications:
- DIN 439B
- Shop by System of Measurement:
- Metric
- POS:
- ME237-2025-00030
- Shop by Material:
- Steel
- Height (Maximum):
- 10mm
- Material Grade:
- Class 4 Steel
- Diameter (Dimension):
- 20mm
- Brand:
- Aspen Fasteners(r)
- cad_3d_file_url:
- https://3d.aspenfasteners.com/assets/obj/ME237-2025.zip
- Thread Direction:
- Left-Hand Thread
- specifications_document_url:
- https://www.aspenfasteners.com/content/2D_PDF/product37/ME237-2025.PDF
- Thread Pitch:
- 2.5
- Coating:
- Uncoated
- Diameter (Nominal):
- M20
- Drive Style:
- External Hex Drive
- Product Class:
- Internally Threaded Fasteners
- Thread Length:
- Full Thread
- Category:
- Hex Jam Thin Nuts
- cad_3d_viewer_url:
- https://3d.aspenfasteners.com/viewer/?cad_model=obj/ME237-2025
- Material:
- Steel
- Order:
- Nuts
- Height (Basic):
- 10mm
- Across Flats (Minimum):
- 29.16mm
- Height (Minimum):
- 9.1mm
