Answer
May 15, 2025 - 07:23 AM
ORB (O-Ring Boss) fittings typically have straight threads, which are designed to create a seal using an O-ring. The thread specifications for ORB fittings often follow SAE J1926-1 or ISO 11926-1 standards. These threads are usually measured in inches, with common sizes including 7/16-20, 9/16-18, 3/4-16, and others, depending on the specific fitting size.
