KURODA's Thread Gauges specified in the API
(American Petroleum Institute) and Premium
Connection Gauges have been receiving the
highest quality reputation not only in Japan but
also throughout the world. KURODA acquired the
licence of API Official Monogram for the API
Thread Gauges in 1957.
KURODA supplies various Thread Gauges, such
as special thread form gauges, or big diameter
gauges as large as 20"(508mm). Consult KURODA
or our agent. We suggest the best solutions for
our customers, providing our skills and long
experiences.
KURODA has developed right-weight API Thread Gauges
through 6 5?8 to 20'' since 1975, when only KURODA could
supply such right weight gauges.
KURODA puts a Limit-plate or Notch on the Working
Thread Ring Gauge for the Spec. 5B except Ex. Li. Csg. For
customers to easily identify the maximum tolerance.
KURODA also supply Special Thread Gauges other than
API Standards.
