Standard
Ship Systems and Equipment—Part Standard for Studs—Continuous and Double End (Inch Series)
2009-05-04
CURRENT
J2271_200905
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)