Description:
A Jam Nut is a low profile nut. It is a six sided (hexagonal) fastener with internal threads that has been drilled and tapped.
Material:
- Steel
- Stainless
- Brass
- Nylon
- Silicon Bronze
- Etc
Grades:
- Grade 2, Low Carbon
- Grade 5
- Grade 8
- 304 Stainless (18-8)
- 316 stainless
- Etc.
Markings:
- Grade 2 – Low carbon-None
- Grade 5 – 3 Dots, dashes, or other markings on non consecutive corners
- Grade 8 – 6 Dots, dashes, or other markings on consecutive corners
Plating:
- Zinc (Blue & Yellow)
- No Plating / Plain (Plain Steel)
- Black Oxide
- Many Others
How to measure:
Thread size, Across flate (ACF), Thickness
Application:
A Jam Nut is typically used when there is limited space but can also be used as a type of locking nut. When one nut is butted up against another nut it will greatly reduce the likelihood that the nuts will back off due to vibration.
Abbreviation / Jargon:
- Half nut
Part Number Prefix:
- 0HN*(Steel)
- 1HN*(Stainless)
- 2HN*(Brass)
- 3HN*(Aluminum)
- 4HN*(Nylon)
Style / Types:
- Standard
- Heavy
- Slotted
- Etc.