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 (0.190 through 4 inches)

UNRF threads (0.190 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 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)

c

Double end studs (tap end type) where the tap end thread length is equivalent to 1-1/2 nominal diameters:

NC-5 interference-fit tap end thread with UNRC, UNRF or 8UN nut end threads (1/4 through 1-1/2 inches)

UNRC and 8 UN threads both ends (1/4 through 4 inches)

UNRC threads both ends (1/4 through 1-1/2 inches)