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Description / Abstract:
GENERAL AND HISTORICAL
When formulated prior to 1895, regular Acme screw threads were
intended to replace square threads and a variety of threads of
other formsused chiefly for the purpose of producing
traversing motions on machines, tools, etc. For current information
on Acme threads, see the latest edition of ASME/ANSI B1.5.
The Stub Acme thread came into being early in the 1900s. Its use
has been generally confined to those unusual applications where a
coarse-pitch thread of shallow depth is required due to mechanical
or metallurgical considerations.
Federal Government Use. When this Standard is approved
by the Department of Defense and Federal Agencies and is
incorporated into FED-STD H28/13, Screw Thread Standards for
Federal Services, Section 13, the use of this Standard by the
Federal Government is subject to all three requirements and
limitations of FED-STD H28/13.