Here, we take a drafting standard, briefly explain its background and what it addresses, and then show how it's treated in the Drafting Manual.
ASME Y14.6 – 2001
Screw Thread Representation
ASME Y14.6 – 2001, Screw Thread Representation
ASME Y14.6 - 2001, Screw Thread Representation is a standard for depicting screw threads on drawings and other documents. It does not cover engineering and manufacturing specifications for screw threads. This standard was originally approved on December 13, 1957 and was designated American Standards Association ASA Y14.6-1957. In 1969 it was re-designated ANSI Y14.6-1957 (note the dates). The next revision was July 26, 1978 (ANSI Y14.6-1978) with a metric supplement approved on September 21, 1981 and released as ANSI Y14.6aM-1981. This latest revision in 2001 revised and consolidated ANSI Y14.6-1978 and ANSI Y14.6aM-1981.
Throughout the history of this standard, technical support has been provided through liaison with societies such as the National Defense Industrial Association (NOIA) [formerly known as the American Defense Preparedness Association (ADPA)], Aerospace Industries Association (AIA), Electronic Industries of America (EIA), and the Society of Automotive Engineers (SAE).
The latest revision (2001) contains the following significant changes:
This standard is covered in Section 4.14 of the Genium Drafting Manual. This Section, titled Screw Thread Representation, provides the following:
The DoD is now relying on the ASME B1 series for thread performance specifications, leaving the responsibility for design, processes, quality control, etc, to the thread manufacturer. These aspects are covered in the Genium Drafting Manual, Section 4.15 Screw Thread Design Considerations
For drafting personnel, the major purpose of this standard is to show how to place and draw the three methods of screw thread representation (simplified, schematic, and detailed) and also how to state thread requirements on engineering drawings. A few of the specifics covered in this standard are:
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