Print Page Email Page Smaller Text Larger Text

ASME B1.20.7: Hose Coupling Screw Threads (Inch)

Publication Date: Jan 1, 1991
SDO: ASME: ASME International
 DOD Adopted   ANSI Approved Approved

The purpose of this document is to provide standards for application to the threaded parts of hose couplings, valves, nozzles, and all other fittings used in direct connection with hose intended for domestic, industrial, and general service in nominal sizes of 1/2, 5/8, 3/4, 1, 1 1/4, 1 1/2, 2, 2 1/2, 3, 3 1/2, and 4 in.

The normal sequence of connections, in relation to the direction of flow, is from an externally threaded nipple into an internally threaded coupling.

The basic dimensions are given in Table 1 while complete detailed dimensions and thread form are given in Tables 2 and 3.

Buy this Standard Now

Or if you answer yes to any of these questions:


  • Do you purchase more than $3000 in standards per year?
  • Do you purchase many different kinds of standards?
  • Do you have multiple employees accessing the same standards?

You may save money by purchasing more comprehensive online access.

* Required field

* First Name:

* Last Name:

* Email Address: