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9/16-18 UNF thread dimensions

SAE J1926 (-6) · Parallel · 60°

Dimensions

Standard
SAE J1926 (-6)
Form
Parallel
Major diameter
14.288 mm
Threads per inch
18
Pitch
1.411 mm
Flank angle
60°
Seals on
O-ring boss
Used for
Process connections

Check a measurement against this thread

Easily confused with

ThreadStandardMajor diameterFlankSeals on
1/4 NPTASME B1.20.10.57 mm smaller in diameter; same pitch60°Thread + sealant
PG 9DIN 404300.91 mm larger in diameter; pitch 1.410 mm80°Gland seal

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