This SAE Parts Standard provides dimensional and quality assurance requirements for studs in the following configurations in standard materials used for ship system applications:
a
Continuous thread studs in UNRC and 8UNR series in the following threads and diameters:
UNRC threads (1/4 through 4 inches)
UNRF threads (1/4 through 1-1/2 inches)
8UNR threads (1-1/8 through 4 inches)
b
Double end studs (clamping type) where both ends are of the same minimum thread length in the following threads and diameters:
UNRC threads (1/4 through 4 inches)
UNRF threads (1/4 through 1-1/2 inches)
8UNR threads (1-1/8 through 4 inches)
Different thread forms on each end are permissible.
c
Double end studs (tap end type) where the tap end thread length is equivalent to 1-1/2 nominal diameters:
Tap End Thread Forms and Diameters
Nut End Thread Forms and Diameters
NC-5 interference-fit tap end threads (1/4 through 1-1/2 inches)
UNRC threads (1/4 through 4 inches)
UNRC threads (1/4 through 4 inches)
UNRF threads (1/4 through 1-1/2 inches)
UNRF threads (1/4 through 1-1/2 inches)
8UNR threads (1-1/8 through 4 inches)
8UNR threads (1-1/8 through 4 Inches)
| SDO | SAE: SAE International |
| Document Number | J2271 |
| Publication Date | May 4, 2009 |
| Language | en - English |
| Page Count | 31 |
| Revision Level | 200905 |
| Supercedes | |
| Committee |